CHAMGAP

Preoperative red-cell transfusion × Reduced clinically important surgical complications in sickle cell disease

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Required evidence, verification status and materials actually read
ItemAVerification statusBReading scopeCReview itemDCurrent findingsEWhy unverifiedFRequired materials and conditionsGFurther research
1 Partly verified Full text not readStored summary read N01 · Evidence conditionWhat are the selected question and existing complete verdict record?Required
The selected stored summary concerns reduced clinically important complications in low- and medium-risk surgery in sickle cell disease. The selected question and complete existing verdict record are distinguished. Candidate history is preserved without creating nonexistent subclaims.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. The relationship between the original complete verdict and selected question remains subject to user review.
The relationship between the original complete verdict and selected question.
If the original question is corrected, the complete pre-change text, current verdict linkage and historical candidate records are preserved separately.
2 Partly verified Full text not readStored summary read N02 · Evidence conditionWhat are the verdict’s actual grade, score, status and axes?Required
Original grade B, score 76, axes B/H/R1/I2/E+/B0 and safety caution are used. An existing verification-status field is absent from the stored summary; that absence is recorded. A statement of absent subclaim scores is not applied to a verdict with its own score and axes.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Existing verdict values, original wording and history remains subject to user review.
Existing verdict values, original wording and history.
If a correction occurs, actual before/after values and reasons are preserved as a separate event.
3 Partly verified Full text not readStored summary read N03 · Evidence conditionWhat is the scope of null, false, empty values and the historical B0 decision?Required
Original precision null, coprimary_split/big_hard_rct/no_human_study false and empty override_reason/override_reason_en strings are preserved. The original B0/B76 decision not to count safety stopping or the 70-person sample as defects is historical. No new criteria or review are run.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Versions of original axes, study assessment and correction history remains subject to user review.
Versions of original axes, study assessment and correction history.
A separate reassessment request must distinguish original history from current production status.
4 Partly verified Full text not readStored summary read N04 · Evidence conditionHow are Korean/English, the reference date, corrections and empty arrays preserved?Required
Complete Korean/English articles, reference date 2026-08-26 and existing empty correction/subclaim/deliberation values are preserved. Stored cross-check/Primary-source cross-check wording is historical, not completed current review.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Original wording, dates, corrections, structure and additional versions in each language remains subject to user review.
Original wording, dates, corrections, structure and additional versions in each language.
When original text or corrections are added, the complete pre-change text and a separate event are retained.
5 Partly verified Full text not readStored summary read N05 · Evidence conditionWhat was actually read, and which external materials remain unread?Required
The complete designated stored JSON was read for production. Abstracts, full texts, NCT/ISRCTN registration, protocols, SAPs, DSMC records and original tables were not accessed. Links, stored citations and historical review do not certify current external reading.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Acquisition/reading level for each material and locations of original results/plans remains subject to user review.
Acquisition/reading level for each material and locations of original results/plans.
Any later direct reading must record its scope, time and version.
6 Partly verified Full text not readStored summary read N06 · Evidence conditionHow are the TAPS bibliography and two registration identifiers linked?Required
The direct report is TAPS, Howard J et al., Lancet 2013, PMID 23352054. Stored registration text is NCT00512577 · ISRCTN00862331; both identifiers link to one stored report. DOI, PMCID and registration content are unverified.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Bibliography, paper/registration versions and material linking them to the same trial remains subject to user review.
Bibliography, paper/registration versions and material linking them to the same trial.
New reports/registration must distinguish identity, populations and relationships using source material.
7 Partly verified Full text not readStored summary read N07 · Evidence conditionHow is sharing across the trial, reports, populations and multiple outcomes maintained?Required
One direct TAPS report contains clinically important complications, acute chest syndrome, SAEs, transfusion-related complications and alloantibodies. Shared people, groups, events or timepoints are not added as new independent trials/participants.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Relationships/overlap between each outcome, trial, population, analysis set and follow-up remains subject to user review.
Relationships/overlap between each outcome, trial, population, analysis set and follow-up.
Added follow-up/related reports must distinguish population sharing within the existing TAPS family.
8 Partly verified Full text not readStored summary read N08 · Evidence conditionWhat are the population and surgical risk scope?Required
The verdict question concerns low-/medium-risk surgery in sickle cell disease. The stored summary lacks detailed ages, genotypes, surgical types, risk classification and eligibility/exclusions, so it is not automatically extended to all sickle cell disease or high-risk surgery.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Original tables of eligibility, exclusions, genotype, surgical risk/type and baseline risk remains subject to user review.
Original tables of eligibility, exclusions, genotype, surgical risk/type and baseline risk.
Other surgery/risk populations require direct comparison material for their own question.
9 Unverified Full text not readStored summary read N09 · Evidence conditionHow much is verified about baseline disease risk, representativeness and clinical setting?Supplementary; required for general application
The current summary lacks disease severity, baseline haemoglobin, previous transfusions, antibodies, comorbidities, recruitment setting and group distributions. The population name and original effect do not guide transfusion suitability for an individual patient.
Required direct details are unverified within the current summary and unread external material. Baseline characteristics, recruitment, distribution, surgery, concurrent care and risk material remains subject to user review.
Baseline characteristics, recruitment, distribution, surgery, concurrent care and risk material.
General application requires direct material showing actual population differences.
10 Partly verified Full text not readStored summary read N10 · Evidence conditionWhat was the original study exposure to preoperative red-cell transfusion?Required
The intervention is preoperative red-cell transfusion. The current summary lacks actual methods, units, targets, timing, antigen matching, changes and adherence. No transfusion procedure, dose, target or suitability recommendations are created.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Trial transfusion strategy, actual implementation, products, exposure and change records remains subject to user review.
Trial transfusion strategy, actual implementation, products, exposure and change records.
Effects of other transfusion strategies must be distinguished using direct comparison material.
11 Partly verified Full text not readStored summary read N11 · Evidence conditionWhat are the no-transfusion control and concurrent surgical/care conditions?Required
The stored comparison is transfusion versus no transfusion, while the reported OR is no transfusion versus transfusion. Actual surgery, anaesthesia, concurrent care, transfusion changes and rescue treatment details are unverified.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Original control, concurrent care, surgery, actual transfusion changes and timing material remains subject to user review.
Original control, concurrent care, surgery, actual transfusion changes and timing material.
Actual strategy implementation material is required to address exposure differences and concurrent-care effects.
12 Unverified Full text not readStored summary read N12 · Evidence conditionWhat were the actual procedures of the multicentre randomized sequential superiority trial?Required
The original design is a multicentre randomized sequential superiority trial. The current summary lacks sequence generation, concealment, stratification, centre implementation and assessment blinding details. Original B0 is not inherited as direct procedural verification.
Required direct details are unverified within the current summary and unread external material. Original allocation, concealment, assessor, centre and sequential-design plans/procedures remains subject to user review.
Original allocation, concealment, assessor, centre and sequential-design plans/procedures.
Added design details must distinguish original reports/historical assessments from actual verification.
13 Partly verified Full text not readStored summary read N13 · Evidence conditionHow do planned 405, enrolled 70 and ITT 67 differ?Required
Of a planned 405 participants, 70 were enrolled and 67 analyzed by ITT. Original planned, enrolled and analyzed counts are distinguished. Enrolled 70 is not changed to a completed-randomization count beyond the stored summary, and no differences or proportions are calculated.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Recruitment, allocation, surgery, follow-up and ITT flow; exclusions, missingness and group definitions remains subject to user review.
Recruitment, allocation, surgery, follow-up and ITT flow; exclusions, missingness and group definitions.
An original flow diagram showing actual analysis-population pathways is needed.
14 Partly verified Full text not readStored summary read N14 · Evidence conditionWhat are the events, groups and denominators in 13/33 and 5/34?Required
Clinically important complications were no transfusion 13/33 (39%) versus transfusion 5/34 (15%). These are original group values for the same verdict, not mixed with separate acute chest syndrome or SAE measures.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Original outcome tables, analysis populations, event adjudication, overlap and follow-up definitions remains subject to user review.
Original outcome tables, analysis populations, event adjudication, overlap and follow-up definitions.
Added direct outcome material must link each event to its group denominator.
15 Partly verified Full text not readStored summary read N15 · Evidence conditionWhat are the direction and interval of the no-transfusion versus transfusion OR?Required
Reported no-transfusion versus transfusion OR: 3.8 (95% CI 1.2–12.2). Its direction is retained, without conversion to a transfusion versus no-transfusion OR, RR, HR or survival outcome. No P value or other effect absent from the stored summary is calculated.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Details of the original OR model, analysis population, adjustment and interval remains subject to user review.
Details of the original OR model, analysis population, adjustment and interval.
The original explanation of the estimand, direction and scale is needed.
16 Partly verified Full text not readStored summary read N16 · Evidence conditionWhat is the original comparison behind the absolute difference of -24 percentage points?Required
The original absolute difference of -24 percentage points is preserved in the context of important surgical complications: no transfusion 39% versus transfusion 15%. No new absolute difference, NNT, treated-person example or interval is calculated.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Original absolute-effect population, time, analysis and interval remains subject to user review.
Original absolute-effect population, time, analysis and interval.
Added original explanations should link the absolute effect to its relevant scope.
17 Partly verified Full text not readStored summary read N17 · Evidence conditionWhat is the observation window for clinically important complications?Required
The endpoint runs from randomization through 30 days after surgery. Thirty days after surgery is distinguished from the transfusion group’s three-month alloantibody observation; the complication window is not changed to simply 30 days after enrollment.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Original outcome-specific starting points, surgery dates, risk periods, follow-up and censoring remains subject to user review.
Original outcome-specific starting points, surgery dates, risk periods, follow-up and censoring.
Outcomes at each timepoint must be linked to their relevant analysis windows.
18 Unverified Full text not readStored summary read N18 · Evidence conditionHow much is known about important complication definitions, components and adjudication?Required
The original important-complication definition and some acute chest syndrome/SAE values are available, but full components, overlap, first events, severity, assessors, blinding and ascertainment details are unverified. Equal reductions in all components are not newly established.
Required direct details are unverified within the current summary and unread external material. Complication components, severity, adjudication, overlap, original outcomes and plans remains subject to user review.
Complication components, severity, adjudication, overlap, original outcomes and plans.
Direct material presenting the composite and individual components side by side is needed.
19 Partly verified Full text not readStored summary read N19 · Evidence conditionWhat separate outcome is acute chest syndrome in 9 versus 1 participants?Required
Original acute chest syndrome counts are 9 versus 1 participants. The no-transfusion versus transfusion context is retained; absent denominators, proportions, effects, CIs or P values for that outcome are not calculated from other outcome numbers.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. The event definition, original tables, denominators, periods and between-group analyses remains subject to user review.
The event definition, original tables, denominators, periods and between-group analyses.
Direct material for each component must be linked separately from the composite outcome.
20 Partly verified Full text not readStored summary read N20 · Evidence conditionWhat are the original serious adverse event counts, denominators and proportions?Required
SAEs were no transfusion 10/33 (30%) versus transfusion 1/34 (3%). These outcomes come from the same trial as complications and acute chest syndrome; detailed overlap is unverified. No new effect, CI or P value is created.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. SAE definitions, periods, calculation, overlap, group tables and plans remains subject to user review.
SAE definitions, periods, calculation, overlap, group tables and plans.
Direct material on the reason for safety stopping and original SAE analysis is needed.
21 Partly verified Full text not readStored summary read N21 · Evidence conditionHow did the first planned interim analysis differ from the later unplanned safety analysis?Required
At the first planned interim analysis, no stopping boundaries had been crossed and the trial continued. The original sequence is retained: an unexpected SAE imbalance later led the DSMC to request an unscheduled interim analysis and recommend stopping for safety.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Prespecified sequential plans, interim results, DSMC decisions, dates and stopping records remains subject to user review.
Prespecified sequential plans, interim results, DSMC decisions, dates and stopping records.
Added original decision material must separately record plans, actual events and interpretation.
22 Partly verified Full text not readStored summary read N22 · Evidence conditionHow are safety stopping and the original B0/sample-size defect treatment related?Required
The historical assessment says stopping was not at a prespecified primary-endpoint boundary and the safety stop was unavoidable, so early stopping and fewer than 200 participants were not counted as defects. This history is preserved alongside the facts: enrolled 70, ITT 67 and planned 405.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Stopping circumstances, original verdict rationale and actual plans/analyses remains subject to user review.
Stopping circumstances, original verdict rationale and actual plans/analyses.
A separate correction to the original decision must preserve before/after wording and reasons.
23 Partly verified Full text not readStored summary read N23 · Evidence conditionWhat effect-size uncertainty arises from the small sample and early termination?Required
The original counterpoint says the small sample and early termination may have overestimated the effect size. The original OR 95% CI width, 1.2–12.2, is preserved without new precision-axis or reliability scores.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Original effect estimation, sequential analysis, stopping, sensitivity and independent outcome material remains subject to user review.
Original effect estimation, sequential analysis, stopping, sensitivity and independent outcome material.
Direct comparison material with independent replication and sufficient events/follow-up is needed.
24 Unverified Full text not readStored summary read N24 · Evidence conditionWhat are the details of ITT, missingness, changes and follow-up?Required
ITT 67 and group counts 33/34 are preserved. Enrollment, analysis inclusion, surgery not performed, treatment changes, missingness, follow-up and analysis handling details are unverified. Group results are not assigned a denominator of all enrollees.
Required direct details are unverified within the current summary and unread external material. Original flow diagrams, ITT definitions, changes, missingness, follow-up and sensitivity analyses remains subject to user review.
Original flow diagrams, ITT definitions, changes, missingness, follow-up and sensitivity analyses.
Material linking the planned estimand to the actual analysis population is needed.
25 Unverified Full text not readStored summary read N25 · Evidence conditionWhat is verified about the prespecified primary endpoint, sequential boundaries and multiple comparisons?Required
Historical explanations of the randomized sequential superiority trial and interim analyses are preserved. Actual registration/protocol/SAP details of primary-outcome hierarchy, stopping rules, multiple comparisons, adjustment and analysis versions remain unread.
Required direct details are unverified within the current summary and unread external material. Registration, protocol, SAP and DSMC document versions, changes, hypotheses and hierarchy remains subject to user review.
Registration, protocol, SAP and DSMC document versions, changes, hypotheses and hierarchy.
Any later comparison of prespecified plans with reports must retain its actual scope.
26 Partly verified Full text not readStored summary read N26 · Evidence conditionWhat is the scope of 0 versus 0 clinically important transfusion-related complications?Required
The original description of zero clinically important transfusion-related complications in both TAPS groups is preserved. The stored summary did not test this comparison, so no between-group significance wording is used and not all transfusion harms are established as absent or harmless.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Event definitions, collection, periods, denominators, testing plans and follow-up material remains subject to user review.
Event definitions, collection, periods, denominators, testing plans and follow-up material.
Rare transfusion harms require material with sufficient exposure, collection and follow-up.
27 Partly verified Full text not readStored summary read N27 · Evidence conditionWhat separate harm is the three-month anti-S alloantibody observation?Required
One participant in the transfusion group developed an anti-S red-cell alloantibody at three months. This is separate from the primary complication window through 30 days after surgery. Incidence, between-group effects, P values or CIs absent from the summary are not calculated.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Original antibody tests, follow-up, group collection, denominators, clinical impact and persistence remains subject to user review.
Original antibody tests, follow-up, group collection, denominators, clinical impact and persistence.
Long-term alloimmunization effects require direct ascertainment, comparison and follow-up material.
28 Unverified Full text not readStored summary read N28 · Evidence conditionWhat remains unverified about acute/delayed haemolytic reactions and alloimmunization?Required
The original counterview explains alloimmunization and acute/delayed haemolytic transfusion reaction risks. Beyond TAPS important complications 0 versus 0 and one anti-S participant, detailed frequencies, ascertainment and long-term results for each harm are unverified.
Required direct details are unverified within the current summary and unread external material. Definitions, collection, denominators, ascertainment and long-term follow-up for each harm remains subject to user review.
Definitions, collection, denominators, ascertainment and long-term follow-up for each harm.
Material documenting actual harm collection/ascertainment and direct clinical impact is needed.
29 Unverified Full text not readStored summary read N29 · Evidence conditionHow much is known about harm collection, ascertainment, recurrence and causality adjudication?Required
Some original transfusion-harm/SAE values are available, but collection, assessors, severity, recurrence, event relatedness, risk periods and safety-denominator details are unverified. Observed events are distinguished from established causality.
Required direct details are unverified within the current summary and unread external material. Original safety tables, collection, relatedness adjudication, recurrence, denominators and follow-up remains subject to user review.
Original safety tables, collection, relatedness adjudication, recurrence, denominators and follow-up.
Harm signals must be supplemented by actual exposure, timing, ascertainment and alternative-factor material.
30 Partly verified Full text not readStored summary read N30 · Evidence conditionAre a safety imbalance and long-term harmlessness the same conclusion?Required
The historical recommendation to stop for safety following an SAE imbalance in the no-transfusion group is retained alongside harms of transfusion itself. A signal of comparative advantage does not establish harmlessness for every patient/long-term transfusion or suitability for every surgery.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Safety hypotheses, decisions, long-term follow-up and comparisons for each exposure, group and event remains subject to user review.
Safety hypotheses, decisions, long-term follow-up and comparisons for each exposure, group and event.
Long-term/rare transfusion harms and clinical benefits each require direct material.
31 Partly verified Full text not readStored summary read N31 · Evidence conditionWhat were NHSBT public sponsorship, author employment and research roles?Required
NHS Blood and Transplant sponsored the trial; five authors were employed by NHSBT. Original information that NHSBT and the MRC Clinical Studies Unit performed design, data collection, analysis and interpretation is retained. Public funding and actual involvement are shown together.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Original sponsorship, employment, research-role, data-access and COI disclosures remains subject to user review.
Original sponsorship, employment, research-role, data-access and COI disclosures.
Added role disclosures must record actual involvement and analysis/data relationships.
32 Unverified Full text not readStored summary read N32 · Evidence conditionWhat are the details of contracts, data access, publication and other COI?Required
The summary describes sponsorship, author employment, design, collection, analysis and interpretation, but contract, data-access, publication-decision and other conflict details are unverified. Original I2 is not inherited as new analysis-independence certification.
Required direct details are unverified within the current summary and unread external material. Original COI, contract, data-access, analysis and publication-role disclosures remains subject to user review.
Original COI, contract, data-access, analysis and publication-role disclosures.
Claims of broader independence require actual data-sharing, involvement and analysis-relationship material.
33 Unverified Full text not readStored summary read N33 · Evidence conditionHow is a single confirmatory report distinguished from additional independent replication?Required
The evidence weight describes a single small confirmatory trial, and the original overall summary says independent replication is needed. One direct report, two registrations and multiple outcomes are not added as new independent replications. Additional direct trials are unverified in the current input.
Required direct details are unverified within the current summary and unread external material. Linkage material for new bibliography, registration, populations, designs, exposures and outcomes remains subject to user review.
Linkage material for new bibliography, registration, populations, designs, exposures and outcomes.
Added independent results must first distinguish population/report sharing with existing TAPS.
34 Partly verified Full text not readStored summary read N34 · Evidence conditionIs the related case 1485 hydroxyurea verdict the same question?Supplementary; required for the boundary of the related question
Case 1485 concerns routine prevention of vaso-occlusive complications in adults with sickle cell anaemia, linked with historical B77. Its population and purpose differ from preparation for low-/medium-risk surgery here. That page was not read and is not counted as a direct TAPS report or new trial.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Disease, population, purpose, timepoint and intervention differences, with direct material remains subject to user review.
Disease, population, purpose, timepoint and intervention differences, with direct material.
Related questions are not combined solely because they name the same disease; differences in conditions and purpose are retained.
35 Unverified Full text not readStored summary read N35 · Evidence conditionCan the findings be extended to other surgical risks, genotypes, ages or transfusion strategies?Supplementary; required for extending applicability
The current verdict preserves the original preoperative transfusion comparison in low-/medium-risk surgery. Benefits/harms for other surgical risks, disease types, ages, baseline antibodies or transfusion strategies are not automatically established as identical. Relevant direct material is unverified.
Required direct details are unverified within the current summary and unread external material. Direct comparison material showing population, surgery and exposure-strategy differences remains subject to user review.
Direct comparison material showing population, surgery and exposure-strategy differences.
Clinical outcomes under other conditions must be distinguished using their relevant populations, strategies and follow-up.
36 Unverified Full text not readStored summary read N36 · Evidence conditionDoes a reduction in complications answer survival, quality of life and every long-term outcome?Supplementary; required to extend to other outcomes
Original results for actual clinically important surgical complications are preserved. Direct long-term survival, quality-of-life, all-complication and routine disease-control values are absent, so they do not substitute for those separate questions.
Required direct details are unverified within the current summary and unread external material. Direct definitions, comparisons, denominators and follow-up for long-term, patient-reported and other clinical outcomes remains subject to user review.
Direct definitions, comparisons, denominators and follow-up for long-term, patient-reported and other clinical outcomes.
Broader clinical-outcome scope requires direct outcome material for each question.
37 Unverified Full text not readStored summary read N37 · Evidence conditionWhat remains unverified about prespecified subgroup, component and multiple-outcome effects?Required
Total important complications and some event counts are preserved, but group-specific subgroup/component plans, precision, interactions and multiple-comparison details are unverified. The overall OR is not copied to every component/population.
Required direct details are unverified within the current summary and unread external material. Prespecified subgroups, components, hierarchy, multiple comparisons and original analysis tables remains subject to user review.
Prespecified subgroups, components, hierarchy, multiple comparisons and original analysis tables.
Direct material answering each outcome/subgroup and prespecified plans are needed.
38 Unverified Full text not readStored summary read N38 · Evidence conditionHow much is verified about transfusion/event timing and alternative factors?Required
Detailed timing between underlying disease, previous transfusions, concurrent care, surgery type, changes and events is unverified. Randomized strategy comparisons are distinguished from attributing every individual event to a single cause.
Required direct details are unverified within the current summary and unread external material. Baseline risk, actual exposure, care, changes, event timing and adjudication material remains subject to user review.
Baseline risk, actual exposure, care, changes, event timing and adjudication material.
Interpreting harms and clinical course requires direct records, ascertainment and comparisons.
39 Partly verified Full text not readStored summary read N39 · Evidence conditionHow are direct clinical outcomes, a large original effect and uncertainty preserved together?Required
Original B76 and wording of a large important-complication reduction, actual events 13/33 versus 5/34 and the OR direction/interval are preserved. Small sample, safety stopping, transfusion harms and the need for independent replication remain limitations.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Relevant original outcome, design, follow-up, uncertainty and independent-material scope remains subject to user review.
Relevant original outcome, design, follow-up, uncertainty and independent-material scope.
Additional material directly addressing clinical benefits and harms is separately needed.
40 Partly verified Full text not readStored summary read N40 · Evidence conditionWhat is preserved when material, corrections or record-location displays are updated?Required (update boundaries)
The existing complete verdict, selected question, candidate history, Korean/English articles, dates and empty correction-history values are retained. New material must separate the complete pre-change stored summary, version/reason, condition changes and separate application of observations.
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Version relationships between new material, corrections, changed text, questions, conditions and observations remains subject to user review.
Version relationships between new material, corrections, changed text, questions, conditions and observations.
Separately added follow-up material must retain report/population sharing and the user-review scope.
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40 itemsWhat the statuses mean

Assessment scope

Stored-material review date
Not recorded
Original evidence cut-off
2026-08-26
Scope actually checked
Existing review summaries and stored records of methodological application. Full papers, supplements, registrations, plans and original data were not read.
What the dates mean
This is the date the stored materials were checked, not the date of a new search of the clinical literature.
Population
Reduced clinically important complications in low- and medium-risk surgery in sickle cell disease
Ingredient, formulation and route
Preoperative red-cell transfusion
Dose
The current article lacks details of the actual transfusion method, dose, targets and schedule; no new procedural guidance is created
Comparator
No transfusion. The reported OR is in the no-transfusion versus transfusion direction
Measured outcome
Clinically important complications from randomization through 30 days after surgery
Duration
Important complications from randomization through 30 days after surgery; the three-month anti-S observation is a separate timepoint
Questions outside this scope
Generalizing effects/safety to other populations, diseases, surgical risks, formulations or timepoints; Adding the same report, population, groups, timepoints or outcomes as new independent trials/participants; Recommending individual treatments, procedures, doses, suitability or usage choices

Evidence and sources

The links below lead to the sources. A link alone does not mean the original source was read or its latest publication status verified.

R01 · Howard J, et al. Lancet. 2013. PMID: 23352054.

PubMed

Material type
Multicentre randomized sequential superiority trial
Materials actually read
Summary read; external papers and registration unread
Findings recorded in the stored summary
13/33 (39%) versus 5/34 (15%); absolute difference -24 percentage points; no-transfusion versus transfusion OR 3.8 (95% CI 1.2–12.2)
Record level
Reported values from the existing review summary. The original paper was not directly verified in this work.
Study overlap and independent replication
Original functional/clinical outcomes, analyses, harms and related timepoints share one TAPS report/population; they are not added as new independent replications.
Public availability, access and reading status by material
MaterialPublic availabilityAccess statusActually readNotes
Stored existing review summaryStored summaryLocally stored existing review summary read for preparationSummary readThe existing complete review summary was read for production; the original paper was not acquired or read.
Paper abstractExternal material unread; neededAccess not attempted; not obtainedNot readOnly the bibliographic PMID link was connected. The actual abstract and result locations were not directly verified.
Full paperExternal material unread; neededAccess not attempted; not obtainedNot readThe URL is a bibliographic link; full-text acquisition and accessibility were not verified.
Clinical trial registrationExternal material unread; neededAccess not attempted; not obtainedNot readOnly original registration-identifier text is preserved. Registration content, versions, first date, changes and comparison with reports are unverified.
Study protocolExternal material unread; neededAccess not attempted; not obtainedNot readOriginal sequential-design, hypothesis, transfusion-strategy, outcome-component, interim-analysis and DSMC stopping-plan documents have not been acquired.
Statistical analysis planExternal material unread; neededAccess not attempted; not obtainedNot readDirect plans for analysis populations, estimands, adjustment, missingness, sensitivity, hierarchy and precision have not been acquired.
Original results and safety tablesExternal material unread; neededAccess not attempted; not obtainedNot readOriginal definitions, group outcomes, timing and denominators are needed for important complications, acute chest syndrome, SAEs, transfusion harms, alloantibodies and stopping.
Sponsorship and interest disclosuresExternal material unread; neededAccess not attempted; not obtainedNot readBeyond stored funding/role information, original contract, data-access, publication-decision and author-specific COI documents have not been acquired.
Verdict on a different related questionExternal material unread; neededAccess not attempted; not obtainedNot readA historical link distinguishing routine prevention in the same disease from original preoperative preparation. It is not a direct TAPS report or independent replication; that page was not read.

Report counts versus independent study counts

Original functional/clinical outcomes, analyses, harms and related timepoints share one TAPS report/population; they are not added as new independent replications.

Review criteria

Version 1.0 · Criteria record date 2026-10-06. These are Chamgap's own application conditions, informed by the referenced methods. They do not constitute official assessment-tool certification or a new efficacy score.

N01 · What are the selected question and existing complete verdict record?
Required materials and conditions
The relationship between the original complete verdict and selected question.
Conditions for verification
What are the selected question and existing complete verdict record? Distinguish The relationship between the original complete verdict and selected question in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
The existing complete verdict is not converted to a subquestion, and nonexistent subclaims are not created.
Why this condition is needed
What are the selected question and existing complete verdict record? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N02 · What are the verdict’s actual grade, score, status and axes?
Required materials and conditions
Existing verdict values, original wording and history.
Conditions for verification
What are the verdict’s actual grade, score, status and axes? Distinguish Existing verdict values, original wording and history in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
The verdict’s original values are preserved; this is not a new grade or score judgment.
Why this condition is needed
What are the verdict’s actual grade, score, status and axes? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N03 · What is the scope of null, false, empty values and the historical B0 decision?
Required materials and conditions
Versions of original axes, study assessment and correction history.
Conditions for verification
What is the scope of null, false, empty values and the historical B0 decision? Distinguish Versions of original axes, study assessment and correction history in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Historical rules on fewer than 200 participants and stopping classification are not run as current automated checks.
Why this condition is needed
What is the scope of null, false, empty values and the historical B0 decision? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N04 · How are Korean/English, the reference date, corrections and empty arrays preserved?
Required materials and conditions
Original wording, dates, corrections, structure and additional versions in each language.
Conditions for verification
How are Korean/English, the reference date, corrections and empty arrays preserved? Distinguish Original wording, dates, corrections, structure and additional versions in each language in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Why this condition is needed
How are Korean/English, the reference date, corrections and empty arrays preserved? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N05 · What was actually read, and which external materials remain unread?
Required materials and conditions
Acquisition/reading level for each material and locations of original results/plans.
Conditions for verification
What was actually read, and which external materials remain unread? Distinguish Acquisition/reading level for each material and locations of original results/plans in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Only URLs were written in the original preparation; no separate link/content checks were performed.
Why this condition is needed
What was actually read, and which external materials remain unread? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N06 · How are the TAPS bibliography and two registration identifiers linked?
Required materials and conditions
Bibliography, paper/registration versions and material linking them to the same trial.
Conditions for verification
How are the TAPS bibliography and two registration identifiers linked? Distinguish Bibliography, paper/registration versions and material linking them to the same trial in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
The two registration identifiers are not counted as two independent trials.
Why this condition is needed
How are the TAPS bibliography and two registration identifiers linked? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N07 · How is sharing across the trial, reports, populations and multiple outcomes maintained?
Required materials and conditions
Relationships/overlap between each outcome, trial, population, analysis set and follow-up.
Conditions for verification
How is sharing across the trial, reports, populations and multiple outcomes maintained? Distinguish Relationships/overlap between each outcome, trial, population, analysis set and follow-up in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
A direct report entry does not certify independent unique trial or participant totals.
Why this condition is needed
How is sharing across the trial, reports, populations and multiple outcomes maintained? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N08 · What are the population and surgical risk scope?
Required materials and conditions
Original tables of eligibility, exclusions, genotype, surgical risk/type and baseline risk.
Conditions for verification
What are the population and surgical risk scope? Distinguish Original tables of eligibility, exclusions, genotype, surgical risk/type and baseline risk in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Ages, genotypes and risk criteria absent from the original are not filled in.
Why this condition is needed
What are the population and surgical risk scope? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N09 · How much is verified about baseline disease risk, representativeness and clinical setting?
Required materials and conditions
Baseline characteristics, recruitment, distribution, surgery, concurrent care and risk material.
Conditions for verification
How much is verified about baseline disease risk, representativeness and clinical setting? Distinguish Baseline characteristics, recruitment, distribution, surgery, concurrent care and risk material in the original material and retain the limits of direct verification.
Requirement and applicability
Supplementary; required for general application
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Why this condition is needed
How much is verified about baseline disease risk, representativeness and clinical setting? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N10 · What was the original study exposure to preoperative red-cell transfusion?
Required materials and conditions
Trial transfusion strategy, actual implementation, products, exposure and change records.
Conditions for verification
What was the original study exposure to preoperative red-cell transfusion? Distinguish Trial transfusion strategy, actual implementation, products, exposure and change records in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
No new Hb targets, exchange/simple transfusion methods, administration schedules or doses are written.
Why this condition is needed
What was the original study exposure to preoperative red-cell transfusion? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N11 · What are the no-transfusion control and concurrent surgical/care conditions?
Required materials and conditions
Original control, concurrent care, surgery, actual transfusion changes and timing material.
Conditions for verification
What are the no-transfusion control and concurrent surgical/care conditions? Distinguish Original control, concurrent care, surgery, actual transfusion changes and timing material in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
No transfusion is not extended to no lifetime transfusion history or to waiting/treatment recommendations.
Why this condition is needed
What are the no-transfusion control and concurrent surgical/care conditions? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N12 · What were the actual procedures of the multicentre randomized sequential superiority trial?
Required materials and conditions
Original allocation, concealment, assessor, centre and sequential-design plans/procedures.
Conditions for verification
What were the actual procedures of the multicentre randomized sequential superiority trial? Distinguish Original allocation, concealment, assessor, centre and sequential-design plans/procedures in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Why this condition is needed
What were the actual procedures of the multicentre randomized sequential superiority trial? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N13 · How do planned 405, enrolled 70 and ITT 67 differ?
Required materials and conditions
Recruitment, allocation, surgery, follow-up and ITT flow; exclusions, missingness and group definitions.
Conditions for verification
How do planned 405, enrolled 70 and ITT 67 differ? Distinguish Recruitment, allocation, surgery, follow-up and ITT flow; exclusions, missingness and group definitions in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
No new lost/excluded participant counts or recruitment completion rates are calculated from current numbers.
Why this condition is needed
How do planned 405, enrolled 70 and ITT 67 differ? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N14 · What are the events, groups and denominators in 13/33 and 5/34?
Required materials and conditions
Original outcome tables, analysis populations, event adjudication, overlap and follow-up definitions.
Conditions for verification
What are the events, groups and denominators in 13/33 and 5/34? Distinguish Original outcome tables, analysis populations, event adjudication, overlap and follow-up definitions in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Why this condition is needed
What are the events, groups and denominators in 13/33 and 5/34? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N15 · What are the direction and interval of the no-transfusion versus transfusion OR?
Required materials and conditions
Details of the original OR model, analysis population, adjustment and interval.
Conditions for verification
What are the direction and interval of the no-transfusion versus transfusion OR? Distinguish Details of the original OR model, analysis population, adjustment and interval in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
The OR is not converted to its reciprocal, a risk ratio or a new relative reduction.
Why this condition is needed
What are the direction and interval of the no-transfusion versus transfusion OR? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N16 · What is the original comparison behind the absolute difference of -24 percentage points?
Required materials and conditions
Original absolute-effect population, time, analysis and interval.
Conditions for verification
What is the original comparison behind the absolute difference of -24 percentage points? Distinguish Original absolute-effect population, time, analysis and interval in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Original absolute values are not copied to long-term survival or effects in other surgery.
Why this condition is needed
What is the original comparison behind the absolute difference of -24 percentage points? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N17 · What is the observation window for clinically important complications?
Required materials and conditions
Original outcome-specific starting points, surgery dates, risk periods, follow-up and censoring.
Conditions for verification
What is the observation window for clinically important complications? Distinguish Original outcome-specific starting points, surgery dates, risk periods, follow-up and censoring in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Why this condition is needed
What is the observation window for clinically important complications? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N18 · How much is known about important complication definitions, components and adjudication?
Required materials and conditions
Complication components, severity, adjudication, overlap, original outcomes and plans.
Conditions for verification
How much is known about important complication definitions, components and adjudication? Distinguish Complication components, severity, adjudication, overlap, original outcomes and plans in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Why this condition is needed
How much is known about important complication definitions, components and adjudication? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N19 · What separate outcome is acute chest syndrome in 9 versus 1 participants?
Required materials and conditions
The event definition, original tables, denominators, periods and between-group analyses.
Conditions for verification
What separate outcome is acute chest syndrome in 9 versus 1 participants? Distinguish The event definition, original tables, denominators, periods and between-group analyses in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
The 9 and 1 participants are not added independently to SAEs or total complications as separate events/people.
Why this condition is needed
What separate outcome is acute chest syndrome in 9 versus 1 participants? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N20 · What are the original serious adverse event counts, denominators and proportions?
Required materials and conditions
SAE definitions, periods, calculation, overlap, group tables and plans.
Conditions for verification
What are the original serious adverse event counts, denominators and proportions? Distinguish SAE definitions, periods, calculation, overlap, group tables and plans in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
SAEs and important complication events are not independently added together.
Why this condition is needed
What are the original serious adverse event counts, denominators and proportions? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N21 · How did the first planned interim analysis differ from the later unplanned safety analysis?
Required materials and conditions
Prespecified sequential plans, interim results, DSMC decisions, dates and stopping records.
Conditions for verification
How did the first planned interim analysis differ from the later unplanned safety analysis? Distinguish Prespecified sequential plans, interim results, DSMC decisions, dates and stopping records in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
The trial is not re-described as stopping for efficacy after crossing the first planned boundary.
Why this condition is needed
How did the first planned interim analysis differ from the later unplanned safety analysis? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N22 · How are safety stopping and the original B0/sample-size defect treatment related?
Required materials and conditions
Stopping circumstances, original verdict rationale and actual plans/analyses.
Conditions for verification
How are safety stopping and the original B0/sample-size defect treatment related? Distinguish Stopping circumstances, original verdict rationale and actual plans/analyses in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
No new sample-size criteria, bias grades or defect scores are calculated.
Why this condition is needed
How are safety stopping and the original B0/sample-size defect treatment related? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N23 · What effect-size uncertainty arises from the small sample and early termination?
Required materials and conditions
Original effect estimation, sequential analysis, stopping, sensitivity and independent outcome material.
Conditions for verification
What effect-size uncertainty arises from the small sample and early termination? Distinguish Original effect estimation, sequential analysis, stopping, sensitivity and independent outcome material in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Uncertainty is not converted into deletion of the original positive result or a new null verdict.
Why this condition is needed
What effect-size uncertainty arises from the small sample and early termination? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N24 · What are the details of ITT, missingness, changes and follow-up?
Required materials and conditions
Original flow diagrams, ITT definitions, changes, missingness, follow-up and sensitivity analyses.
Conditions for verification
What are the details of ITT, missingness, changes and follow-up? Distinguish Original flow diagrams, ITT definitions, changes, missingness, follow-up and sensitivity analyses in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Why this condition is needed
What are the details of ITT, missingness, changes and follow-up? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N25 · What is verified about the prespecified primary endpoint, sequential boundaries and multiple comparisons?
Required materials and conditions
Registration, protocol, SAP and DSMC document versions, changes, hypotheses and hierarchy.
Conditions for verification
What is verified about the prespecified primary endpoint, sequential boundaries and multiple comparisons? Distinguish Registration, protocol, SAP and DSMC document versions, changes, hypotheses and hierarchy in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Why this condition is needed
What is verified about the prespecified primary endpoint, sequential boundaries and multiple comparisons? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N26 · What is the scope of 0 versus 0 clinically important transfusion-related complications?
Required materials and conditions
Event definitions, collection, periods, denominators, testing plans and follow-up material.
Conditions for verification
What is the scope of 0 versus 0 clinically important transfusion-related complications? Distinguish Event definitions, collection, periods, denominators, testing plans and follow-up material in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Zero observed events are not changed into zero risk or safety noninferiority.
Why this condition is needed
What is the scope of 0 versus 0 clinically important transfusion-related complications? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N27 · What separate harm is the three-month anti-S alloantibody observation?
Required materials and conditions
Original antibody tests, follow-up, group collection, denominators, clinical impact and persistence.
Conditions for verification
What separate harm is the three-month anti-S alloantibody observation? Distinguish Original antibody tests, follow-up, group collection, denominators, clinical impact and persistence in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
One participant is not converted into a new 1/34 proportion or long-term disease value.
Why this condition is needed
What separate harm is the three-month anti-S alloantibody observation? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N28 · What remains unverified about acute/delayed haemolytic reactions and alloimmunization?
Required materials and conditions
Definitions, collection, denominators, ascertainment and long-term follow-up for each harm.
Conditions for verification
What remains unverified about acute/delayed haemolytic reactions and alloimmunization? Distinguish Definitions, collection, denominators, ascertainment and long-term follow-up for each harm in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Why this condition is needed
What remains unverified about acute/delayed haemolytic reactions and alloimmunization? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N29 · How much is known about harm collection, ascertainment, recurrence and causality adjudication?
Required materials and conditions
Original safety tables, collection, relatedness adjudication, recurrence, denominators and follow-up.
Conditions for verification
How much is known about harm collection, ascertainment, recurrence and causality adjudication? Distinguish Original safety tables, collection, relatedness adjudication, recurrence, denominators and follow-up in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Why this condition is needed
How much is known about harm collection, ascertainment, recurrence and causality adjudication? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N30 · Are a safety imbalance and long-term harmlessness the same conclusion?
Required materials and conditions
Safety hypotheses, decisions, long-term follow-up and comparisons for each exposure, group and event.
Conditions for verification
Are a safety imbalance and long-term harmlessness the same conclusion? Distinguish Safety hypotheses, decisions, long-term follow-up and comparisons for each exposure, group and event in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Why this condition is needed
Are a safety imbalance and long-term harmlessness the same conclusion? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N31 · What were NHSBT public sponsorship, author employment and research roles?
Required materials and conditions
Original sponsorship, employment, research-role, data-access and COI disclosures.
Conditions for verification
What were NHSBT public sponsorship, author employment and research roles? Distinguish Original sponsorship, employment, research-role, data-access and COI disclosures in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Public funding is not changed into absence of research involvement.
Why this condition is needed
What were NHSBT public sponsorship, author employment and research roles? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N32 · What are the details of contracts, data access, publication and other COI?
Required materials and conditions
Original COI, contract, data-access, analysis and publication-role disclosures.
Conditions for verification
What are the details of contracts, data access, publication and other COI? Distinguish Original COI, contract, data-access, analysis and publication-role disclosures in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Why this condition is needed
What are the details of contracts, data access, publication and other COI? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N33 · How is a single confirmatory report distinguished from additional independent replication?
Required materials and conditions
Linkage material for new bibliography, registration, populations, designs, exposures and outcomes.
Conditions for verification
How is a single confirmatory report distinguished from additional independent replication? Distinguish Linkage material for new bibliography, registration, populations, designs, exposures and outcomes in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Why this condition is needed
How is a single confirmatory report distinguished from additional independent replication? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N34 · Is the related case 1485 hydroxyurea verdict the same question?
Required materials and conditions
Disease, population, purpose, timepoint and intervention differences, with direct material.
Conditions for verification
Is the related case 1485 hydroxyurea verdict the same question? Distinguish Disease, population, purpose, timepoint and intervention differences, with direct material in the original material and retain the limits of direct verification.
Requirement and applicability
Supplementary; required for the boundary of the related question
Application exceptions
The citation’s JSON-path verification label is historical; it does not mean the link was checked or read here.
Why this condition is needed
Is the related case 1485 hydroxyurea verdict the same question? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N35 · Can the findings be extended to other surgical risks, genotypes, ages or transfusion strategies?
Required materials and conditions
Direct comparison material showing population, surgery and exposure-strategy differences.
Conditions for verification
Can the findings be extended to other surgical risks, genotypes, ages or transfusion strategies? Distinguish Direct comparison material showing population, surgery and exposure-strategy differences in the original material and retain the limits of direct verification.
Requirement and applicability
Supplementary; required for extending applicability
Application exceptions
No recommendations on transfusion suitability, methods, products, doses or surgical choice are made.
Why this condition is needed
Can the findings be extended to other surgical risks, genotypes, ages or transfusion strategies? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N36 · Does a reduction in complications answer survival, quality of life and every long-term outcome?
Required materials and conditions
Direct definitions, comparisons, denominators and follow-up for long-term, patient-reported and other clinical outcomes.
Conditions for verification
Does a reduction in complications answer survival, quality of life and every long-term outcome? Distinguish Direct definitions, comparisons, denominators and follow-up for long-term, patient-reported and other clinical outcomes in the original material and retain the limits of direct verification.
Requirement and applicability
Supplementary; required to extend to other outcomes
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Why this condition is needed
Does a reduction in complications answer survival, quality of life and every long-term outcome? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N37 · What remains unverified about prespecified subgroup, component and multiple-outcome effects?
Required materials and conditions
Prespecified subgroups, components, hierarchy, multiple comparisons and original analysis tables.
Conditions for verification
What remains unverified about prespecified subgroup, component and multiple-outcome effects? Distinguish Prespecified subgroups, components, hierarchy, multiple comparisons and original analysis tables in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Why this condition is needed
What remains unverified about prespecified subgroup, component and multiple-outcome effects? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N38 · How much is verified about transfusion/event timing and alternative factors?
Required materials and conditions
Baseline risk, actual exposure, care, changes, event timing and adjudication material.
Conditions for verification
How much is verified about transfusion/event timing and alternative factors? Distinguish Baseline risk, actual exposure, care, changes, event timing and adjudication material in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Why this condition is needed
How much is verified about transfusion/event timing and alternative factors? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N39 · How are direct clinical outcomes, a large original effect and uncertainty preserved together?
Required materials and conditions
Relevant original outcome, design, follow-up, uncertainty and independent-material scope.
Conditions for verification
How are direct clinical outcomes, a large original effect and uncertainty preserved together? Distinguish Relevant original outcome, design, follow-up, uncertainty and independent-material scope in the original material and retain the limits of direct verification.
Requirement and applicability
Required
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Why this condition is needed
How are direct clinical outcomes, a large original effect and uncertainty preserved together? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
N40 · What is preserved when material, corrections or record-location displays are updated?
Required materials and conditions
Version relationships between new material, corrections, changed text, questions, conditions and observations.
Conditions for verification
What is preserved when material, corrections or record-location displays are updated? Distinguish Version relationships between new material, corrections, changed text, questions, conditions and observations in the original material and retain the limits of direct verification.
Requirement and applicability
Required (update boundaries)
Application exceptions
No new searches, calculations, grades or treatment/procedural guidance are created in this production.
Why this condition is needed
What is preserved when material, corrections or record-location displays are updated? This is needed to distinguish the relevant outcome, population and design from other scopes.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.
Referenced methods and the sections actually reviewed

M03 · Cochrane Handbook 6.5 (2024), chapter updated 2023-08

Official methodology · §3.1, §3.2.1–3.2.3, MECIR C5/C7/C13

Referenced principle
Clearly record the question, eligibility conditions and reasons for changes, and distinguish variations in interventions.
Extent of review
Methodological principles stated in existing pilot materials and condition templates were referenced. The methodological text was not reviewed again in this work.

M04 · Cochrane Handbook 6.5.1 (2025), chapter updated 2025-03

Official methodology · §4.5, §4.6.1–4.6.3, MECIR C42

Referenced principle
Distinguish studies from reports and link them; do not omit a study solely because results are unreported.
Extent of review
Methodological principles stated in existing pilot materials and condition templates were referenced. The methodological text was not reviewed again in this work.

M08 · Cochrane Handbook 6.5 (2024), chapter updated 2019-10

Official methodology · §8.1–8.2.3, Table 8.2.a

Referenced principle
Define the outcome and effect of interest, then examine randomization, deviations, missing data, measurement and selective reporting.
Extent of review
Methodological principles stated in existing pilot materials and condition templates were referenced. The methodological text was not reviewed again in this work.

M15 · Cochrane Handbook 6.5 (2024), chapter updated 2023-08

Official methodology · §15.2.4, §15.3.1–15.3.3

Referenced principle
Distinguish effect estimates, intervals, importance and applicability. Sample size alone does not determine precision.
Extent of review
Methodological principles stated in existing pilot materials and condition templates were referenced. The methodological text was not reviewed again in this work.

M19 · Cochrane Handbook 6.5 (2024), chapter updated 2019-10

Official methodology · §19.1.2, §19.2.1–19.2.4

Referenced principle
Harm questions may require different designs, populations and follow-up from efficacy questions. Case reports do not establish incidence rates.
Extent of review
Methodological principles stated in existing pilot materials and condition templates were referenced. The methodological text was not reviewed again in this work.
What the statuses mean
Met
The original content has been reviewed as meeting the conditions. This status is not used in this preparation.
Partly verified
Some information in the stored summary was linked during preparation; clinical verification or review is not complete.
Unverified
Required direct values, definitions or materials have not been established within the current storage and reading scope. This does not mean zero effect, no papers or failed access.
Review incomplete
Awaiting user review, or actual review remains incomplete.
Not reported
Used only when original materials were actually read and the outcome was judged unreported. Not used for external materials unread in this work.
Inaccessible
Used only when an actual access attempt has a recorded failure. Not used for access that was not attempted in this work.
Insufficient evidence for the conditions
Indicates insufficient direct materials for the relevant scope or conditions; it is not a new grade.
Not applicable
Used when the reason it does not apply to the original question is stated.
Conflicting data
Retains the scope of conflicting statements in original materials; it is not an arbitrary reassessment.

Change history

2026-10-10 · Public page/material version 1.0

The public page and data were prepared from the existing 40 items. No new clinical search, verification-status change or scoring was performed.

The stored-material review date (Not recorded) and original evidence cut-off (2026-08-26) were retained unchanged.

Researcher downloads

These materials provide the same evidence, scope and verification status as this page.

View all item details

N01 · What are the selected question and existing complete verdict record?

Current findings
The selected stored summary concerns reduced clinically important complications in low- and medium-risk surgery in sickle cell disease. The selected question and complete existing verdict record are distinguished. Candidate history is preserved without creating nonexistent subclaims.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. The relationship between the original complete verdict and selected question remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; The relationship between the original complete verdict and selected question.
Required materials and conditions
The relationship between the original complete verdict and selected question.
Materials to obtain first
The relationship between the original complete verdict and selected question.
Further research
If the original question is corrected, the complete pre-change text, current verdict linkage and historical candidate records are preserved separately.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What are the selected question and existing complete verdict record? Distinguish The relationship between the original complete verdict and selected question in the original material and retain the limits of direct verification.
Why this condition is needed
What are the selected question and existing complete verdict record? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
The existing complete verdict is not converted to a subquestion, and nonexistent subclaims are not created.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N02 · What are the verdict’s actual grade, score, status and axes?

Current findings
Original grade B, score 76, axes B/H/R1/I2/E+/B0 and safety caution are used. An existing verification-status field is absent from the stored summary; that absence is recorded. A statement of absent subclaim scores is not applied to a verdict with its own score and axes.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Existing verdict values, original wording and history remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Existing verdict values, original wording and history.
Required materials and conditions
Existing verdict values, original wording and history.
Materials to obtain first
Existing verdict values, original wording and history.
Further research
If a correction occurs, actual before/after values and reasons are preserved as a separate event.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What are the verdict’s actual grade, score, status and axes? Distinguish Existing verdict values, original wording and history in the original material and retain the limits of direct verification.
Why this condition is needed
What are the verdict’s actual grade, score, status and axes? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
The verdict’s original values are preserved; this is not a new grade or score judgment.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N03 · What is the scope of null, false, empty values and the historical B0 decision?

Current findings
Original precision null, coprimary_split/big_hard_rct/no_human_study false and empty override_reason/override_reason_en strings are preserved. The original B0/B76 decision not to count safety stopping or the 70-person sample as defects is historical. No new criteria or review are run.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Versions of original axes, study assessment and correction history remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Versions of original axes, study assessment and correction history.
Required materials and conditions
Versions of original axes, study assessment and correction history.
Materials to obtain first
Versions of original axes, study assessment and correction history.
Further research
A separate reassessment request must distinguish original history from current production status.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What is the scope of null, false, empty values and the historical B0 decision? Distinguish Versions of original axes, study assessment and correction history in the original material and retain the limits of direct verification.
Why this condition is needed
What is the scope of null, false, empty values and the historical B0 decision? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Historical rules on fewer than 200 participants and stopping classification are not run as current automated checks.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N04 · How are Korean/English, the reference date, corrections and empty arrays preserved?

Current findings
Complete Korean/English articles, reference date 2026-08-26 and existing empty correction/subclaim/deliberation values are preserved. Stored cross-check/Primary-source cross-check wording is historical, not completed current review.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Original wording, dates, corrections, structure and additional versions in each language remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Original wording, dates, corrections, structure and additional versions in each language.
Required materials and conditions
Original wording, dates, corrections, structure and additional versions in each language.
Materials to obtain first
Original wording, dates, corrections, structure and additional versions in each language.
Further research
When original text or corrections are added, the complete pre-change text and a separate event are retained.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
How are Korean/English, the reference date, corrections and empty arrays preserved? Distinguish Original wording, dates, corrections, structure and additional versions in each language in the original material and retain the limits of direct verification.
Why this condition is needed
How are Korean/English, the reference date, corrections and empty arrays preserved? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N05 · What was actually read, and which external materials remain unread?

Current findings
The complete designated stored JSON was read for production. Abstracts, full texts, NCT/ISRCTN registration, protocols, SAPs, DSMC records and original tables were not accessed. Links, stored citations and historical review do not certify current external reading.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Acquisition/reading level for each material and locations of original results/plans remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Acquisition/reading level for each material and locations of original results/plans.
Required materials and conditions
Acquisition/reading level for each material and locations of original results/plans.
Materials to obtain first
Acquisition/reading level for each material and locations of original results/plans.
Further research
Any later direct reading must record its scope, time and version.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What was actually read, and which external materials remain unread? Distinguish Acquisition/reading level for each material and locations of original results/plans in the original material and retain the limits of direct verification.
Why this condition is needed
What was actually read, and which external materials remain unread? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Only URLs were written in the original preparation; no separate link/content checks were performed.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N06 · How are the TAPS bibliography and two registration identifiers linked?

Current findings
The direct report is TAPS, Howard J et al., Lancet 2013, PMID 23352054. Stored registration text is NCT00512577 · ISRCTN00862331; both identifiers link to one stored report. DOI, PMCID and registration content are unverified.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Bibliography, paper/registration versions and material linking them to the same trial remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Bibliography, paper/registration versions and material linking them to the same trial.
Required materials and conditions
Bibliography, paper/registration versions and material linking them to the same trial.
Materials to obtain first
Bibliography, paper/registration versions and material linking them to the same trial.
Further research
New reports/registration must distinguish identity, populations and relationships using source material.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
How are the TAPS bibliography and two registration identifiers linked? Distinguish Bibliography, paper/registration versions and material linking them to the same trial in the original material and retain the limits of direct verification.
Why this condition is needed
How are the TAPS bibliography and two registration identifiers linked? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
The two registration identifiers are not counted as two independent trials.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N07 · How is sharing across the trial, reports, populations and multiple outcomes maintained?

Current findings
One direct TAPS report contains clinically important complications, acute chest syndrome, SAEs, transfusion-related complications and alloantibodies. Shared people, groups, events or timepoints are not added as new independent trials/participants.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Relationships/overlap between each outcome, trial, population, analysis set and follow-up remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Relationships/overlap between each outcome, trial, population, analysis set and follow-up.
Required materials and conditions
Relationships/overlap between each outcome, trial, population, analysis set and follow-up.
Materials to obtain first
Relationships/overlap between each outcome, trial, population, analysis set and follow-up.
Further research
Added follow-up/related reports must distinguish population sharing within the existing TAPS family.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
How is sharing across the trial, reports, populations and multiple outcomes maintained? Distinguish Relationships/overlap between each outcome, trial, population, analysis set and follow-up in the original material and retain the limits of direct verification.
Why this condition is needed
How is sharing across the trial, reports, populations and multiple outcomes maintained? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
A direct report entry does not certify independent unique trial or participant totals.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N08 · What are the population and surgical risk scope?

Current findings
The verdict question concerns low-/medium-risk surgery in sickle cell disease. The stored summary lacks detailed ages, genotypes, surgical types, risk classification and eligibility/exclusions, so it is not automatically extended to all sickle cell disease or high-risk surgery.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Original tables of eligibility, exclusions, genotype, surgical risk/type and baseline risk remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Original tables of eligibility, exclusions, genotype, surgical risk/type and baseline risk.
Required materials and conditions
Original tables of eligibility, exclusions, genotype, surgical risk/type and baseline risk.
Materials to obtain first
Original tables of eligibility, exclusions, genotype, surgical risk/type and baseline risk.
Further research
Other surgery/risk populations require direct comparison material for their own question.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What are the population and surgical risk scope? Distinguish Original tables of eligibility, exclusions, genotype, surgical risk/type and baseline risk in the original material and retain the limits of direct verification.
Why this condition is needed
What are the population and surgical risk scope? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Ages, genotypes and risk criteria absent from the original are not filled in.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N09 · How much is verified about baseline disease risk, representativeness and clinical setting?

Current findings
The current summary lacks disease severity, baseline haemoglobin, previous transfusions, antibodies, comorbidities, recruitment setting and group distributions. The population name and original effect do not guide transfusion suitability for an individual patient.
Verification status
Unverified
Materials actually read
Summary read; external materials not read
Why unverified
Required direct details are unverified within the current summary and unread external material. Baseline characteristics, recruitment, distribution, surgery, concurrent care and risk material remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Baseline characteristics, recruitment, distribution, surgery, concurrent care and risk material.
Required materials and conditions
Baseline characteristics, recruitment, distribution, surgery, concurrent care and risk material.
Materials to obtain first
Baseline characteristics, recruitment, distribution, surgery, concurrent care and risk material.
Further research
General application requires direct material showing actual population differences.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
How much is verified about baseline disease risk, representativeness and clinical setting? Distinguish Baseline characteristics, recruitment, distribution, surgery, concurrent care and risk material in the original material and retain the limits of direct verification.
Why this condition is needed
How much is verified about baseline disease risk, representativeness and clinical setting? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N10 · What was the original study exposure to preoperative red-cell transfusion?

Current findings
The intervention is preoperative red-cell transfusion. The current summary lacks actual methods, units, targets, timing, antigen matching, changes and adherence. No transfusion procedure, dose, target or suitability recommendations are created.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Trial transfusion strategy, actual implementation, products, exposure and change records remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Trial transfusion strategy, actual implementation, products, exposure and change records.
Required materials and conditions
Trial transfusion strategy, actual implementation, products, exposure and change records.
Materials to obtain first
Trial transfusion strategy, actual implementation, products, exposure and change records.
Further research
Effects of other transfusion strategies must be distinguished using direct comparison material.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What was the original study exposure to preoperative red-cell transfusion? Distinguish Trial transfusion strategy, actual implementation, products, exposure and change records in the original material and retain the limits of direct verification.
Why this condition is needed
What was the original study exposure to preoperative red-cell transfusion? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
No new Hb targets, exchange/simple transfusion methods, administration schedules or doses are written.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N11 · What are the no-transfusion control and concurrent surgical/care conditions?

Current findings
The stored comparison is transfusion versus no transfusion, while the reported OR is no transfusion versus transfusion. Actual surgery, anaesthesia, concurrent care, transfusion changes and rescue treatment details are unverified.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Original control, concurrent care, surgery, actual transfusion changes and timing material remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Original control, concurrent care, surgery, actual transfusion changes and timing material.
Required materials and conditions
Original control, concurrent care, surgery, actual transfusion changes and timing material.
Materials to obtain first
Original control, concurrent care, surgery, actual transfusion changes and timing material.
Further research
Actual strategy implementation material is required to address exposure differences and concurrent-care effects.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What are the no-transfusion control and concurrent surgical/care conditions? Distinguish Original control, concurrent care, surgery, actual transfusion changes and timing material in the original material and retain the limits of direct verification.
Why this condition is needed
What are the no-transfusion control and concurrent surgical/care conditions? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
No transfusion is not extended to no lifetime transfusion history or to waiting/treatment recommendations.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N12 · What were the actual procedures of the multicentre randomized sequential superiority trial?

Current findings
The original design is a multicentre randomized sequential superiority trial. The current summary lacks sequence generation, concealment, stratification, centre implementation and assessment blinding details. Original B0 is not inherited as direct procedural verification.
Verification status
Unverified
Materials actually read
Summary read; external materials not read
Why unverified
Required direct details are unverified within the current summary and unread external material. Original allocation, concealment, assessor, centre and sequential-design plans/procedures remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Original allocation, concealment, assessor, centre and sequential-design plans/procedures.
Required materials and conditions
Original allocation, concealment, assessor, centre and sequential-design plans/procedures.
Materials to obtain first
Original allocation, concealment, assessor, centre and sequential-design plans/procedures.
Further research
Added design details must distinguish original reports/historical assessments from actual verification.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What were the actual procedures of the multicentre randomized sequential superiority trial? Distinguish Original allocation, concealment, assessor, centre and sequential-design plans/procedures in the original material and retain the limits of direct verification.
Why this condition is needed
What were the actual procedures of the multicentre randomized sequential superiority trial? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N13 · How do planned 405, enrolled 70 and ITT 67 differ?

Current findings
Of a planned 405 participants, 70 were enrolled and 67 analyzed by ITT. Original planned, enrolled and analyzed counts are distinguished. Enrolled 70 is not changed to a completed-randomization count beyond the stored summary, and no differences or proportions are calculated.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Recruitment, allocation, surgery, follow-up and ITT flow; exclusions, missingness and group definitions remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Recruitment, allocation, surgery, follow-up and ITT flow; exclusions, missingness and group definitions.
Required materials and conditions
Recruitment, allocation, surgery, follow-up and ITT flow; exclusions, missingness and group definitions.
Materials to obtain first
Recruitment, allocation, surgery, follow-up and ITT flow; exclusions, missingness and group definitions.
Further research
An original flow diagram showing actual analysis-population pathways is needed.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
How do planned 405, enrolled 70 and ITT 67 differ? Distinguish Recruitment, allocation, surgery, follow-up and ITT flow; exclusions, missingness and group definitions in the original material and retain the limits of direct verification.
Why this condition is needed
How do planned 405, enrolled 70 and ITT 67 differ? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
No new lost/excluded participant counts or recruitment completion rates are calculated from current numbers.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N14 · What are the events, groups and denominators in 13/33 and 5/34?

Current findings
Clinically important complications were no transfusion 13/33 (39%) versus transfusion 5/34 (15%). These are original group values for the same verdict, not mixed with separate acute chest syndrome or SAE measures.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Original outcome tables, analysis populations, event adjudication, overlap and follow-up definitions remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Original outcome tables, analysis populations, event adjudication, overlap and follow-up definitions.
Required materials and conditions
Original outcome tables, analysis populations, event adjudication, overlap and follow-up definitions.
Materials to obtain first
Original outcome tables, analysis populations, event adjudication, overlap and follow-up definitions.
Further research
Added direct outcome material must link each event to its group denominator.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What are the events, groups and denominators in 13/33 and 5/34? Distinguish Original outcome tables, analysis populations, event adjudication, overlap and follow-up definitions in the original material and retain the limits of direct verification.
Why this condition is needed
What are the events, groups and denominators in 13/33 and 5/34? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N15 · What are the direction and interval of the no-transfusion versus transfusion OR?

Current findings
Reported no-transfusion versus transfusion OR: 3.8 (95% CI 1.2–12.2). Its direction is retained, without conversion to a transfusion versus no-transfusion OR, RR, HR or survival outcome. No P value or other effect absent from the stored summary is calculated.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Details of the original OR model, analysis population, adjustment and interval remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Details of the original OR model, analysis population, adjustment and interval.
Required materials and conditions
Details of the original OR model, analysis population, adjustment and interval.
Materials to obtain first
Details of the original OR model, analysis population, adjustment and interval.
Further research
The original explanation of the estimand, direction and scale is needed.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What are the direction and interval of the no-transfusion versus transfusion OR? Distinguish Details of the original OR model, analysis population, adjustment and interval in the original material and retain the limits of direct verification.
Why this condition is needed
What are the direction and interval of the no-transfusion versus transfusion OR? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
The OR is not converted to its reciprocal, a risk ratio or a new relative reduction.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N16 · What is the original comparison behind the absolute difference of -24 percentage points?

Current findings
The original absolute difference of -24 percentage points is preserved in the context of important surgical complications: no transfusion 39% versus transfusion 15%. No new absolute difference, NNT, treated-person example or interval is calculated.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Original absolute-effect population, time, analysis and interval remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Original absolute-effect population, time, analysis and interval.
Required materials and conditions
Original absolute-effect population, time, analysis and interval.
Materials to obtain first
Original absolute-effect population, time, analysis and interval.
Further research
Added original explanations should link the absolute effect to its relevant scope.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What is the original comparison behind the absolute difference of -24 percentage points? Distinguish Original absolute-effect population, time, analysis and interval in the original material and retain the limits of direct verification.
Why this condition is needed
What is the original comparison behind the absolute difference of -24 percentage points? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Original absolute values are not copied to long-term survival or effects in other surgery.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N17 · What is the observation window for clinically important complications?

Current findings
The endpoint runs from randomization through 30 days after surgery. Thirty days after surgery is distinguished from the transfusion group’s three-month alloantibody observation; the complication window is not changed to simply 30 days after enrollment.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Original outcome-specific starting points, surgery dates, risk periods, follow-up and censoring remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Original outcome-specific starting points, surgery dates, risk periods, follow-up and censoring.
Required materials and conditions
Original outcome-specific starting points, surgery dates, risk periods, follow-up and censoring.
Materials to obtain first
Original outcome-specific starting points, surgery dates, risk periods, follow-up and censoring.
Further research
Outcomes at each timepoint must be linked to their relevant analysis windows.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What is the observation window for clinically important complications? Distinguish Original outcome-specific starting points, surgery dates, risk periods, follow-up and censoring in the original material and retain the limits of direct verification.
Why this condition is needed
What is the observation window for clinically important complications? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N18 · How much is known about important complication definitions, components and adjudication?

Current findings
The original important-complication definition and some acute chest syndrome/SAE values are available, but full components, overlap, first events, severity, assessors, blinding and ascertainment details are unverified. Equal reductions in all components are not newly established.
Verification status
Unverified
Materials actually read
Summary read; external materials not read
Why unverified
Required direct details are unverified within the current summary and unread external material. Complication components, severity, adjudication, overlap, original outcomes and plans remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Complication components, severity, adjudication, overlap, original outcomes and plans.
Required materials and conditions
Complication components, severity, adjudication, overlap, original outcomes and plans.
Materials to obtain first
Complication components, severity, adjudication, overlap, original outcomes and plans.
Further research
Direct material presenting the composite and individual components side by side is needed.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
How much is known about important complication definitions, components and adjudication? Distinguish Complication components, severity, adjudication, overlap, original outcomes and plans in the original material and retain the limits of direct verification.
Why this condition is needed
How much is known about important complication definitions, components and adjudication? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N19 · What separate outcome is acute chest syndrome in 9 versus 1 participants?

Current findings
Original acute chest syndrome counts are 9 versus 1 participants. The no-transfusion versus transfusion context is retained; absent denominators, proportions, effects, CIs or P values for that outcome are not calculated from other outcome numbers.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. The event definition, original tables, denominators, periods and between-group analyses remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; The event definition, original tables, denominators, periods and between-group analyses.
Required materials and conditions
The event definition, original tables, denominators, periods and between-group analyses.
Materials to obtain first
The event definition, original tables, denominators, periods and between-group analyses.
Further research
Direct material for each component must be linked separately from the composite outcome.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What separate outcome is acute chest syndrome in 9 versus 1 participants? Distinguish The event definition, original tables, denominators, periods and between-group analyses in the original material and retain the limits of direct verification.
Why this condition is needed
What separate outcome is acute chest syndrome in 9 versus 1 participants? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
The 9 and 1 participants are not added independently to SAEs or total complications as separate events/people.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N20 · What are the original serious adverse event counts, denominators and proportions?

Current findings
SAEs were no transfusion 10/33 (30%) versus transfusion 1/34 (3%). These outcomes come from the same trial as complications and acute chest syndrome; detailed overlap is unverified. No new effect, CI or P value is created.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. SAE definitions, periods, calculation, overlap, group tables and plans remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; SAE definitions, periods, calculation, overlap, group tables and plans.
Required materials and conditions
SAE definitions, periods, calculation, overlap, group tables and plans.
Materials to obtain first
SAE definitions, periods, calculation, overlap, group tables and plans.
Further research
Direct material on the reason for safety stopping and original SAE analysis is needed.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What are the original serious adverse event counts, denominators and proportions? Distinguish SAE definitions, periods, calculation, overlap, group tables and plans in the original material and retain the limits of direct verification.
Why this condition is needed
What are the original serious adverse event counts, denominators and proportions? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
SAEs and important complication events are not independently added together.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N21 · How did the first planned interim analysis differ from the later unplanned safety analysis?

Current findings
At the first planned interim analysis, no stopping boundaries had been crossed and the trial continued. The original sequence is retained: an unexpected SAE imbalance later led the DSMC to request an unscheduled interim analysis and recommend stopping for safety.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Prespecified sequential plans, interim results, DSMC decisions, dates and stopping records remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Prespecified sequential plans, interim results, DSMC decisions, dates and stopping records.
Required materials and conditions
Prespecified sequential plans, interim results, DSMC decisions, dates and stopping records.
Materials to obtain first
Prespecified sequential plans, interim results, DSMC decisions, dates and stopping records.
Further research
Added original decision material must separately record plans, actual events and interpretation.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
How did the first planned interim analysis differ from the later unplanned safety analysis? Distinguish Prespecified sequential plans, interim results, DSMC decisions, dates and stopping records in the original material and retain the limits of direct verification.
Why this condition is needed
How did the first planned interim analysis differ from the later unplanned safety analysis? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
The trial is not re-described as stopping for efficacy after crossing the first planned boundary.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N22 · How are safety stopping and the original B0/sample-size defect treatment related?

Current findings
The historical assessment says stopping was not at a prespecified primary-endpoint boundary and the safety stop was unavoidable, so early stopping and fewer than 200 participants were not counted as defects. This history is preserved alongside the facts: enrolled 70, ITT 67 and planned 405.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Stopping circumstances, original verdict rationale and actual plans/analyses remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Stopping circumstances, original verdict rationale and actual plans/analyses.
Required materials and conditions
Stopping circumstances, original verdict rationale and actual plans/analyses.
Materials to obtain first
Stopping circumstances, original verdict rationale and actual plans/analyses.
Further research
A separate correction to the original decision must preserve before/after wording and reasons.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
How are safety stopping and the original B0/sample-size defect treatment related? Distinguish Stopping circumstances, original verdict rationale and actual plans/analyses in the original material and retain the limits of direct verification.
Why this condition is needed
How are safety stopping and the original B0/sample-size defect treatment related? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
No new sample-size criteria, bias grades or defect scores are calculated.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N23 · What effect-size uncertainty arises from the small sample and early termination?

Current findings
The original counterpoint says the small sample and early termination may have overestimated the effect size. The original OR 95% CI width, 1.2–12.2, is preserved without new precision-axis or reliability scores.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Original effect estimation, sequential analysis, stopping, sensitivity and independent outcome material remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Original effect estimation, sequential analysis, stopping, sensitivity and independent outcome material.
Required materials and conditions
Original effect estimation, sequential analysis, stopping, sensitivity and independent outcome material.
Materials to obtain first
Original effect estimation, sequential analysis, stopping, sensitivity and independent outcome material.
Further research
Direct comparison material with independent replication and sufficient events/follow-up is needed.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What effect-size uncertainty arises from the small sample and early termination? Distinguish Original effect estimation, sequential analysis, stopping, sensitivity and independent outcome material in the original material and retain the limits of direct verification.
Why this condition is needed
What effect-size uncertainty arises from the small sample and early termination? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Uncertainty is not converted into deletion of the original positive result or a new null verdict.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N24 · What are the details of ITT, missingness, changes and follow-up?

Current findings
ITT 67 and group counts 33/34 are preserved. Enrollment, analysis inclusion, surgery not performed, treatment changes, missingness, follow-up and analysis handling details are unverified. Group results are not assigned a denominator of all enrollees.
Verification status
Unverified
Materials actually read
Summary read; external materials not read
Why unverified
Required direct details are unverified within the current summary and unread external material. Original flow diagrams, ITT definitions, changes, missingness, follow-up and sensitivity analyses remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Original flow diagrams, ITT definitions, changes, missingness, follow-up and sensitivity analyses.
Required materials and conditions
Original flow diagrams, ITT definitions, changes, missingness, follow-up and sensitivity analyses.
Materials to obtain first
Original flow diagrams, ITT definitions, changes, missingness, follow-up and sensitivity analyses.
Further research
Material linking the planned estimand to the actual analysis population is needed.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What are the details of ITT, missingness, changes and follow-up? Distinguish Original flow diagrams, ITT definitions, changes, missingness, follow-up and sensitivity analyses in the original material and retain the limits of direct verification.
Why this condition is needed
What are the details of ITT, missingness, changes and follow-up? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N25 · What is verified about the prespecified primary endpoint, sequential boundaries and multiple comparisons?

Current findings
Historical explanations of the randomized sequential superiority trial and interim analyses are preserved. Actual registration/protocol/SAP details of primary-outcome hierarchy, stopping rules, multiple comparisons, adjustment and analysis versions remain unread.
Verification status
Unverified
Materials actually read
Summary read; external materials not read
Why unverified
Required direct details are unverified within the current summary and unread external material. Registration, protocol, SAP and DSMC document versions, changes, hypotheses and hierarchy remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Registration, protocol, SAP and DSMC document versions, changes, hypotheses and hierarchy.
Required materials and conditions
Registration, protocol, SAP and DSMC document versions, changes, hypotheses and hierarchy.
Materials to obtain first
Registration, protocol, SAP and DSMC document versions, changes, hypotheses and hierarchy.
Further research
Any later comparison of prespecified plans with reports must retain its actual scope.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What is verified about the prespecified primary endpoint, sequential boundaries and multiple comparisons? Distinguish Registration, protocol, SAP and DSMC document versions, changes, hypotheses and hierarchy in the original material and retain the limits of direct verification.
Why this condition is needed
What is verified about the prespecified primary endpoint, sequential boundaries and multiple comparisons? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N26 · What is the scope of 0 versus 0 clinically important transfusion-related complications?

Current findings
The original description of zero clinically important transfusion-related complications in both TAPS groups is preserved. The stored summary did not test this comparison, so no between-group significance wording is used and not all transfusion harms are established as absent or harmless.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Event definitions, collection, periods, denominators, testing plans and follow-up material remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Event definitions, collection, periods, denominators, testing plans and follow-up material.
Required materials and conditions
Event definitions, collection, periods, denominators, testing plans and follow-up material.
Materials to obtain first
Event definitions, collection, periods, denominators, testing plans and follow-up material.
Further research
Rare transfusion harms require material with sufficient exposure, collection and follow-up.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What is the scope of 0 versus 0 clinically important transfusion-related complications? Distinguish Event definitions, collection, periods, denominators, testing plans and follow-up material in the original material and retain the limits of direct verification.
Why this condition is needed
What is the scope of 0 versus 0 clinically important transfusion-related complications? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Zero observed events are not changed into zero risk or safety noninferiority.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N27 · What separate harm is the three-month anti-S alloantibody observation?

Current findings
One participant in the transfusion group developed an anti-S red-cell alloantibody at three months. This is separate from the primary complication window through 30 days after surgery. Incidence, between-group effects, P values or CIs absent from the summary are not calculated.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Original antibody tests, follow-up, group collection, denominators, clinical impact and persistence remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Original antibody tests, follow-up, group collection, denominators, clinical impact and persistence.
Required materials and conditions
Original antibody tests, follow-up, group collection, denominators, clinical impact and persistence.
Materials to obtain first
Original antibody tests, follow-up, group collection, denominators, clinical impact and persistence.
Further research
Long-term alloimmunization effects require direct ascertainment, comparison and follow-up material.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What separate harm is the three-month anti-S alloantibody observation? Distinguish Original antibody tests, follow-up, group collection, denominators, clinical impact and persistence in the original material and retain the limits of direct verification.
Why this condition is needed
What separate harm is the three-month anti-S alloantibody observation? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
One participant is not converted into a new 1/34 proportion or long-term disease value.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N28 · What remains unverified about acute/delayed haemolytic reactions and alloimmunization?

Current findings
The original counterview explains alloimmunization and acute/delayed haemolytic transfusion reaction risks. Beyond TAPS important complications 0 versus 0 and one anti-S participant, detailed frequencies, ascertainment and long-term results for each harm are unverified.
Verification status
Unverified
Materials actually read
Summary read; external materials not read
Why unverified
Required direct details are unverified within the current summary and unread external material. Definitions, collection, denominators, ascertainment and long-term follow-up for each harm remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Definitions, collection, denominators, ascertainment and long-term follow-up for each harm.
Required materials and conditions
Definitions, collection, denominators, ascertainment and long-term follow-up for each harm.
Materials to obtain first
Definitions, collection, denominators, ascertainment and long-term follow-up for each harm.
Further research
Material documenting actual harm collection/ascertainment and direct clinical impact is needed.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What remains unverified about acute/delayed haemolytic reactions and alloimmunization? Distinguish Definitions, collection, denominators, ascertainment and long-term follow-up for each harm in the original material and retain the limits of direct verification.
Why this condition is needed
What remains unverified about acute/delayed haemolytic reactions and alloimmunization? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N29 · How much is known about harm collection, ascertainment, recurrence and causality adjudication?

Current findings
Some original transfusion-harm/SAE values are available, but collection, assessors, severity, recurrence, event relatedness, risk periods and safety-denominator details are unverified. Observed events are distinguished from established causality.
Verification status
Unverified
Materials actually read
Summary read; external materials not read
Why unverified
Required direct details are unverified within the current summary and unread external material. Original safety tables, collection, relatedness adjudication, recurrence, denominators and follow-up remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Original safety tables, collection, relatedness adjudication, recurrence, denominators and follow-up.
Required materials and conditions
Original safety tables, collection, relatedness adjudication, recurrence, denominators and follow-up.
Materials to obtain first
Original safety tables, collection, relatedness adjudication, recurrence, denominators and follow-up.
Further research
Harm signals must be supplemented by actual exposure, timing, ascertainment and alternative-factor material.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
How much is known about harm collection, ascertainment, recurrence and causality adjudication? Distinguish Original safety tables, collection, relatedness adjudication, recurrence, denominators and follow-up in the original material and retain the limits of direct verification.
Why this condition is needed
How much is known about harm collection, ascertainment, recurrence and causality adjudication? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N30 · Are a safety imbalance and long-term harmlessness the same conclusion?

Current findings
The historical recommendation to stop for safety following an SAE imbalance in the no-transfusion group is retained alongside harms of transfusion itself. A signal of comparative advantage does not establish harmlessness for every patient/long-term transfusion or suitability for every surgery.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Safety hypotheses, decisions, long-term follow-up and comparisons for each exposure, group and event remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Safety hypotheses, decisions, long-term follow-up and comparisons for each exposure, group and event.
Required materials and conditions
Safety hypotheses, decisions, long-term follow-up and comparisons for each exposure, group and event.
Materials to obtain first
Safety hypotheses, decisions, long-term follow-up and comparisons for each exposure, group and event.
Further research
Long-term/rare transfusion harms and clinical benefits each require direct material.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
Are a safety imbalance and long-term harmlessness the same conclusion? Distinguish Safety hypotheses, decisions, long-term follow-up and comparisons for each exposure, group and event in the original material and retain the limits of direct verification.
Why this condition is needed
Are a safety imbalance and long-term harmlessness the same conclusion? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N31 · What were NHSBT public sponsorship, author employment and research roles?

Current findings
NHS Blood and Transplant sponsored the trial; five authors were employed by NHSBT. Original information that NHSBT and the MRC Clinical Studies Unit performed design, data collection, analysis and interpretation is retained. Public funding and actual involvement are shown together.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Original sponsorship, employment, research-role, data-access and COI disclosures remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Original sponsorship, employment, research-role, data-access and COI disclosures.
Required materials and conditions
Original sponsorship, employment, research-role, data-access and COI disclosures.
Materials to obtain first
Original sponsorship, employment, research-role, data-access and COI disclosures.
Further research
Added role disclosures must record actual involvement and analysis/data relationships.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What were NHSBT public sponsorship, author employment and research roles? Distinguish Original sponsorship, employment, research-role, data-access and COI disclosures in the original material and retain the limits of direct verification.
Why this condition is needed
What were NHSBT public sponsorship, author employment and research roles? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Public funding is not changed into absence of research involvement.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N32 · What are the details of contracts, data access, publication and other COI?

Current findings
The summary describes sponsorship, author employment, design, collection, analysis and interpretation, but contract, data-access, publication-decision and other conflict details are unverified. Original I2 is not inherited as new analysis-independence certification.
Verification status
Unverified
Materials actually read
Summary read; external materials not read
Why unverified
Required direct details are unverified within the current summary and unread external material. Original COI, contract, data-access, analysis and publication-role disclosures remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Original COI, contract, data-access, analysis and publication-role disclosures.
Required materials and conditions
Original COI, contract, data-access, analysis and publication-role disclosures.
Materials to obtain first
Original COI, contract, data-access, analysis and publication-role disclosures.
Further research
Claims of broader independence require actual data-sharing, involvement and analysis-relationship material.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What are the details of contracts, data access, publication and other COI? Distinguish Original COI, contract, data-access, analysis and publication-role disclosures in the original material and retain the limits of direct verification.
Why this condition is needed
What are the details of contracts, data access, publication and other COI? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N33 · How is a single confirmatory report distinguished from additional independent replication?

Current findings
The evidence weight describes a single small confirmatory trial, and the original overall summary says independent replication is needed. One direct report, two registrations and multiple outcomes are not added as new independent replications. Additional direct trials are unverified in the current input.
Verification status
Unverified
Materials actually read
Summary read; external materials not read
Why unverified
Required direct details are unverified within the current summary and unread external material. Linkage material for new bibliography, registration, populations, designs, exposures and outcomes remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Linkage material for new bibliography, registration, populations, designs, exposures and outcomes.
Required materials and conditions
Linkage material for new bibliography, registration, populations, designs, exposures and outcomes.
Materials to obtain first
Linkage material for new bibliography, registration, populations, designs, exposures and outcomes.
Further research
Added independent results must first distinguish population/report sharing with existing TAPS.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
How is a single confirmatory report distinguished from additional independent replication? Distinguish Linkage material for new bibliography, registration, populations, designs, exposures and outcomes in the original material and retain the limits of direct verification.
Why this condition is needed
How is a single confirmatory report distinguished from additional independent replication? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N34 · Is the related case 1485 hydroxyurea verdict the same question?

Current findings
Case 1485 concerns routine prevention of vaso-occlusive complications in adults with sickle cell anaemia, linked with historical B77. Its population and purpose differ from preparation for low-/medium-risk surgery here. That page was not read and is not counted as a direct TAPS report or new trial.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Disease, population, purpose, timepoint and intervention differences, with direct material remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Disease, population, purpose, timepoint and intervention differences, with direct material.
Required materials and conditions
Disease, population, purpose, timepoint and intervention differences, with direct material.
Materials to obtain first
Disease, population, purpose, timepoint and intervention differences, with direct material.
Further research
Related questions are not combined solely because they name the same disease; differences in conditions and purpose are retained.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
Is the related case 1485 hydroxyurea verdict the same question? Distinguish Disease, population, purpose, timepoint and intervention differences, with direct material in the original material and retain the limits of direct verification.
Why this condition is needed
Is the related case 1485 hydroxyurea verdict the same question? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
The citation’s JSON-path verification label is historical; it does not mean the link was checked or read here.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources

N35 · Can the findings be extended to other surgical risks, genotypes, ages or transfusion strategies?

Current findings
The current verdict preserves the original preoperative transfusion comparison in low-/medium-risk surgery. Benefits/harms for other surgical risks, disease types, ages, baseline antibodies or transfusion strategies are not automatically established as identical. Relevant direct material is unverified.
Verification status
Unverified
Materials actually read
Summary read; external materials not read
Why unverified
Required direct details are unverified within the current summary and unread external material. Direct comparison material showing population, surgery and exposure-strategy differences remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Direct comparison material showing population, surgery and exposure-strategy differences.
Required materials and conditions
Direct comparison material showing population, surgery and exposure-strategy differences.
Materials to obtain first
Direct comparison material showing population, surgery and exposure-strategy differences.
Further research
Clinical outcomes under other conditions must be distinguished using their relevant populations, strategies and follow-up.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
Can the findings be extended to other surgical risks, genotypes, ages or transfusion strategies? Distinguish Direct comparison material showing population, surgery and exposure-strategy differences in the original material and retain the limits of direct verification.
Why this condition is needed
Can the findings be extended to other surgical risks, genotypes, ages or transfusion strategies? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
No recommendations on transfusion suitability, methods, products, doses or surgical choice are made.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N36 · Does a reduction in complications answer survival, quality of life and every long-term outcome?

Current findings
Original results for actual clinically important surgical complications are preserved. Direct long-term survival, quality-of-life, all-complication and routine disease-control values are absent, so they do not substitute for those separate questions.
Verification status
Unverified
Materials actually read
Summary read; external materials not read
Why unverified
Required direct details are unverified within the current summary and unread external material. Direct definitions, comparisons, denominators and follow-up for long-term, patient-reported and other clinical outcomes remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Direct definitions, comparisons, denominators and follow-up for long-term, patient-reported and other clinical outcomes.
Required materials and conditions
Direct definitions, comparisons, denominators and follow-up for long-term, patient-reported and other clinical outcomes.
Materials to obtain first
Direct definitions, comparisons, denominators and follow-up for long-term, patient-reported and other clinical outcomes.
Further research
Broader clinical-outcome scope requires direct outcome material for each question.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
Does a reduction in complications answer survival, quality of life and every long-term outcome? Distinguish Direct definitions, comparisons, denominators and follow-up for long-term, patient-reported and other clinical outcomes in the original material and retain the limits of direct verification.
Why this condition is needed
Does a reduction in complications answer survival, quality of life and every long-term outcome? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N37 · What remains unverified about prespecified subgroup, component and multiple-outcome effects?

Current findings
Total important complications and some event counts are preserved, but group-specific subgroup/component plans, precision, interactions and multiple-comparison details are unverified. The overall OR is not copied to every component/population.
Verification status
Unverified
Materials actually read
Summary read; external materials not read
Why unverified
Required direct details are unverified within the current summary and unread external material. Prespecified subgroups, components, hierarchy, multiple comparisons and original analysis tables remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Prespecified subgroups, components, hierarchy, multiple comparisons and original analysis tables.
Required materials and conditions
Prespecified subgroups, components, hierarchy, multiple comparisons and original analysis tables.
Materials to obtain first
Prespecified subgroups, components, hierarchy, multiple comparisons and original analysis tables.
Further research
Direct material answering each outcome/subgroup and prespecified plans are needed.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What remains unverified about prespecified subgroup, component and multiple-outcome effects? Distinguish Prespecified subgroups, components, hierarchy, multiple comparisons and original analysis tables in the original material and retain the limits of direct verification.
Why this condition is needed
What remains unverified about prespecified subgroup, component and multiple-outcome effects? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N38 · How much is verified about transfusion/event timing and alternative factors?

Current findings
Detailed timing between underlying disease, previous transfusions, concurrent care, surgery type, changes and events is unverified. Randomized strategy comparisons are distinguished from attributing every individual event to a single cause.
Verification status
Unverified
Materials actually read
Summary read; external materials not read
Why unverified
Required direct details are unverified within the current summary and unread external material. Baseline risk, actual exposure, care, changes, event timing and adjudication material remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Baseline risk, actual exposure, care, changes, event timing and adjudication material.
Required materials and conditions
Baseline risk, actual exposure, care, changes, event timing and adjudication material.
Materials to obtain first
Baseline risk, actual exposure, care, changes, event timing and adjudication material.
Further research
Interpreting harms and clinical course requires direct records, ascertainment and comparisons.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
How much is verified about transfusion/event timing and alternative factors? Distinguish Baseline risk, actual exposure, care, changes, event timing and adjudication material in the original material and retain the limits of direct verification.
Why this condition is needed
How much is verified about transfusion/event timing and alternative factors? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N39 · How are direct clinical outcomes, a large original effect and uncertainty preserved together?

Current findings
Original B76 and wording of a large important-complication reduction, actual events 13/33 versus 5/34 and the OR direction/interval are preserved. Small sample, safety stopping, transfusion harms and the need for independent replication remain limitations.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Relevant original outcome, design, follow-up, uncertainty and independent-material scope remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Relevant original outcome, design, follow-up, uncertainty and independent-material scope.
Required materials and conditions
Relevant original outcome, design, follow-up, uncertainty and independent-material scope.
Materials to obtain first
Relevant original outcome, design, follow-up, uncertainty and independent-material scope.
Further research
Additional material directly addressing clinical benefits and harms is separately needed.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
How are direct clinical outcomes, a large original effect and uncertainty preserved together? Distinguish Relevant original outcome, design, follow-up, uncertainty and independent-material scope in the original material and retain the limits of direct verification.
Why this condition is needed
How are direct clinical outcomes, a large original effect and uncertainty preserved together? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
Original stored information is distinguished from unread external material. No numbers, calculations or new verdicts beyond the source are created.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01

N40 · What is preserved when material, corrections or record-location displays are updated?

Current findings
The existing complete verdict, selected question, candidate history, Korean/English articles, dates and empty correction-history values are retained. New material must separate the complete pre-change stored summary, version/reason, condition changes and separate application of observations.
Verification status
Partly verified
Materials actually read
Summary read; external materials not read
Why unverified
Some stored summary content is linked for presentation; clinical confirmation/content review is not complete. Version relationships between new material, corrections, changed text, questions, conditions and observations remains subject to user review.
Reason for missing information
External abstracts, full texts, registration, plans and original tables remain unread; Version relationships between new material, corrections, changed text, questions, conditions and observations.
Required materials and conditions
Version relationships between new material, corrections, changed text, questions, conditions and observations.
Materials to obtain first
Version relationships between new material, corrections, changed text, questions, conditions and observations.
Further research
Separately added follow-up material must retain report/population sharing and the user-review scope.
Remaining uncertainty
Absence or unread external material does not mean zero effect, zero events, no paper, failed access or a new verdict.
Conditions for verification
What is preserved when material, corrections or record-location displays are updated? Distinguish Version relationships between new material, corrections, changed text, questions, conditions and observations in the original material and retain the limits of direct verification.
Why this condition is needed
What is preserved when material, corrections or record-location displays are updated? This is needed to distinguish the relevant outcome, population and design from other scopes.
Application exceptions
No new searches, calculations, grades or treatment/procedural guidance are created in this production.
Referenced methods
Study-family condition definitions linked to the stored original; no official clinical method assessment was run.

Related sources R01