{ "schema_version": "chamgap-public-evidence-check-1.0", "public_id": "v2953-s0", "verdict_number": "2953", "title": "Knee Control × One-season ACL injury rate in adolescent female football — Evidence Check", "view_version": "1.0", "view_created_date": "2026-10-12", "criteria_version": "1.0", "criteria_date": "2026-10-06", "review_date": null, "legacy_evidence_date": "2026-08-26", "review_scope": { "materials_read": "Existing review summaries and stored records of methodological application", "clinical_papers_directly_read": false, "new_clinical_search": false, "limitation": "The whole stored parent-verdict summary and selected subclaim were read for production. External papers, abstracts, full texts, registry, protocol, SAP and funding disclosures were not separately read or accessed. Historical review records are not inherited as current clinical verification or a new verdict.", "date_meaning": "This is the date the stored materials were checked, not the date of a new search of the clinical literature." }, "claim_context": { "population": "Adolescent female football players in eight Swedish regional football associations; exact age range and detailed eligibility unverified", "intervention": "Original study exposure to the Knee Control neuromuscular warm-up", "dose": "Preserved study exposure: approximately 15 minutes twice weekly; actual performance and components unverified. This is not an implementation guide.", "comparator": "Original between-arm control group; specific warm-up and concomitant exposures unverified", "endpoint": "ACL injury rate per football exposure over one season; distinguish player event proportions, exposure-adjusted RR and absolute rate difference", "duration": "One season; exact calendar duration, individual observation windows and long-term persistence unverified", "excluded_extensions": [ "Direct effects in other sexes, sports or ages", "Prevention of all acute/severe knee injuries", "Long-term protection beyond the season", "Optimal performance level or effects in individual players", "Improved function, return to play, surgery outcomes or quality of life", "Harmlessness in every population" ] }, "requirements": [ { "item_id": "N01", "question_type": "Evidence condition", "question": "Is this sheet's question reduced ACL injury rate over one season?", "needed": "Linkage of the selected subclaim and its parent's population, intervention and outcome", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Is this sheet's question reduced ACL injury rate over one season?", "application_exception": "Preserve the existing unit without creating a hypothetical main question or a new split.", "criterion": "Distinguish the exact wording of the one-season ACL result from the linkage between its question and existing verdict record.", "basis": "M03 §3.1, §3.2.1–3.2.4 question-clarification principles; detailed separation rules are our own design / M03 §3.2.4; our own extension boundary", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If the claim's scope changes, record the existing question and exclusions separately.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The selected existing question is ‘Reduced ACL injury rate over one season’. The parent's adolescent female football and Knee Control context is preserved alongside it.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. The final number of independent claims is unconfirmed.", "missingness": "The final number of independent claims is not established.", "uncertainty": "Preserve the existing unit without creating a hypothetical main question or a new split. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Linkage of the selected subclaim and its parent's population, intervention and outcome" }, { "item_id": "N02", "question_type": "Evidence condition", "question": "Are the subclaim verdict and parent score/axes distinguished?", "needed": "Original subclaim grade/note and the locations of genuinely absent fields", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Are the subclaim verdict and parent score/axes distinguished?", "application_exception": "Do not copy the parent's 56 points or E+/B2 into values belonging to the subclaim.", "criterion": "Record values present in the selected row separately from values present only in the parent.", "basis": "M03 §3.1, §3.2.1–3.2.4 question-clarification principles; detailed separation rules are our own design / M04 §4.5, §4.6.3; current material-conversion limits reflect review scope and our own design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If subclaim fields are actually added, preserve the original version and creation event without issuing a new verdict.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "Preserve subclaim grade C and the note ‘Positive RR; absolute rate-difference CI included zero’. Subclaim score, status and axes keys are absent and remain null. Parent grade C with 56 points and its axes are parent context.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. The original material has no subclaim score, status or axes.", "missingness": "The original material has no subclaim score, status or axes.", "uncertainty": "Do not copy the parent's 56 points or E+/B2 into values belonging to the subclaim. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Original subclaim grade/note and the locations of genuinely absent fields" }, { "item_id": "N03", "question_type": "Evidence condition", "question": "Is the original verdict/cross-check history distinguished from current verification?", "needed": "Parent Korean/English verdict, axes, existing integrated summary and correction history", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Is the original verdict/cross-check history distinguished from current verification?", "application_exception": "Do not inherit historical cross-checks or the true large hard-outcome RCT flag as a pass of current review.", "criterion": "Preserve the history while keeping review of the existing content incomplete.", "basis": "M04 §4.5, §4.6.3; current material-conversion limits reflect review scope and our own design / M08 §8.1–8.2.3; our own application", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "Record a later verdict update separately from a new-evidence event within the user's requested scope.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The parent's verdict-decision record preserves the historical cross-check incorporation and new Chamgap verdict. The existing grade rationale describing a large hard-outcome cluster trial and two analytical/attrition defects is historical context.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. Current clinical review, RoB2 assessment and methodology certification have not been performed.", "missingness": "Current clinical review, RoB2 assessment and methodology certification have not been performed.", "uncertainty": "Do not inherit historical cross-checks or the true large hard-outcome RCT flag as a pass of current review. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Parent Korean/English verdict, axes, existing integrated summary and correction history" }, { "item_id": "N04", "question_type": "Evidence condition", "question": "Are materials actually read distinguished from unread external material?", "needed": "Acquisition/read levels for each material and stored-summary location", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Are materials actually read distinguished from unread external material?", "application_exception": "Do not convert a URL’s presence to full-text acquisition, link verification or access failure.", "criterion": "Mark the local summary as summary read and external material as unread.", "basis": "M04 §4.5–4.6 material-collection and selection principles; separation of access and reading and hyperlink rules are our own design / M04 §4.5, §4.6.3; current material-conversion limits reflect review scope and our own design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If the user supplies material or a read history is added, record only that material's actual read scope.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "Production used the designated complete stored summary and the selected unit. The PubMed link, external abstract/full text, registration and protocol were not accessed.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. External content is unread, with no access attempt.", "missingness": "External content is unread, with no access attempt.", "uncertainty": "A URL's presence does not mean full-text acquisition, a checked link or failed access. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Acquisition/read levels for each material and stored-summary location" }, { "item_id": "N05", "question_type": "Evidence condition", "question": "How are the report, registration and study family linked?", "needed": "Bibliographic/registration linkage and a list of follow-up/duplicate reports", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: How are the report, registration and study family linked?", "application_exception": "One citation or a registration string does not certify trial identity or independent replication.", "criterion": "Preserve one report and leave unconfirmed unique trial and aggregate participant counts null.", "basis": "M04 §4.6.1–4.6.2 distinction between studies and reports; cohort and outcome linking is our own application / M04 §4.6.1–4.6.2, M15 §15.3.1; our own application", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If the original report, registration and related-report list are supplied, record relationships within and between families.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The stored citation is Waldén et al., BMJ 2012;344:e3042, PMID 22556050; the evidence list records NCT00894595. The original registration is unread.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. DOI and PMCID are absent from the summary citation, and the unique trial count is unconfirmed.", "missingness": "DOI and PMCID are absent from the summary citation, and the unique trial count is unconfirmed.", "uncertainty": "One citation or a registration string does not certify trial identity or independent replication. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Bibliographic/registration linkage and a list of follow-up/duplicate reports" }, { "item_id": "N06", "question_type": "Evidence condition", "question": "Who were the actual participants, and in what setting?", "needed": "Exact age range, eligibility/exclusions, baseline ACL injury and playing level", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Who were the actual participants, and in what setting?", "application_exception": "Do not attach age numbers absent from the original material to the word adolescent.", "criterion": "Distinguish the original population/region from gaps for other groups.", "basis": "M03 §3.2.1; detailed population conditions are our own design / M03 §3.2.1–3.2.4; dose, persistence and effect-modification details are our own design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If direct population-specific material or the original eligibility table is supplied, distinguish applicability from unresolved information.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The context is adolescent female football players in eight Swedish regional football associations. Direct results for other sexes, sports, ages or regions are not verified in this summary.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. Exact ages and inclusion of players with prior injury are unverified.", "missingness": "Exact ages and inclusion of players with prior injury are unverified.", "uncertainty": "Do not attach age numbers absent from the original material to the word adolescent. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Exact age range, eligibility/exclusions, baseline ACL injury and playing level" }, { "item_id": "N07", "question_type": "Evidence condition", "question": "Are clubs, teams, players and cluster randomization distinguished?", "needed": "Stratification factors, randomized cluster unit, clubs/teams by arm and allocation concealment", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Are clubs, teams, players and cluster randomization distinguished?", "application_exception": "Do not count clubs or teams as participants or separate independent trials.", "criterion": "Preserve the original scale by unit and leave detailed cluster allocation unverified.", "basis": "M03 §3.2.1; detailed population conditions are our own design / M08 §8.1–8.2.3; own application / M08 Table 8.2.a, M15 §15.3, M19 §19.1.2–19.2.4; design-specific adaptations are our own design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If the original allocation table and cluster flowchart are supplied, record the cluster unit alongside the participant analysis unit.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The stored stratified cluster-randomized trial scale is 230 clubs, 341 teams and 4,564 players. Clubs, teams and players are different units.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. Detailed operation of the randomized cluster unit and cluster counts by arm are unverified.", "missingness": "Detailed operation of the randomized cluster unit and cluster counts by arm are unverified.", "uncertainty": "Do not count clubs or teams as participants or separate independent trials. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Stratification factors, randomized cluster unit, clubs/teams by arm and allocation concealment" }, { "item_id": "N08", "question_type": "Evidence condition", "question": "What was the study's original Knee Control exposure?", "needed": "Original program version, study delivery records, nominal and actual exposure", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: What was the study's original Knee Control exposure?", "application_exception": "Do not rewrite the study exposure as exercise steps or instructions for use.", "criterion": "Preserve the stated frequency, time and season while leaving actual-exposure gaps visible.", "basis": "M03 §3.2.2–3.2.3; reverse-direction labeling and assessment adaptations are our own design / M03 §3.2.3, M08 §8.2.2–8.2.3; our own application", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If original intervention records are supplied, record the study-exposure version and differences in the comparison.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The preserved study exposure is Knee Control approximately 15 minutes twice weekly for one season in adolescent female football. This describes study exposure.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. Individual exercises, coach training and exact cumulative performance are unverified.", "missingness": "Individual exercises, coach training and exact cumulative performance are unverified.", "uncertainty": "Do not rewrite the study exposure as exercise steps or instructions for use. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Original program version, study delivery records, nominal and actual exposure" }, { "item_id": "N09", "question_type": "Evidence condition", "question": "Are actual participation and adherence-based analyses known?", "needed": "Player/team performance records, crossover and prespecified adherence analyses", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Are actual participation and adherence-based analyses known?", "application_exception": "Do not estimate effects in high adherers or an optimal frequency.", "criterion": "Nominal exposure cannot fill in actual performance or performance-specific effects.", "basis": "M03 §3.2.2–3.2.3; reverse-direction markers and assessment adaptations are our own design / M08 §8.2.2, M15 §15.3.1; own application / M03 §3.2.1–3.2.4; dose, persistence and effect-modification details are our own design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If performance data and prespecified subgroup analyses are supplied, separate the randomized comparison from analyses by performance level.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The summary includes nominal frequency and time but no actual adherence rate or ACL effect by degree of performance.", "condition_status": "Unverified", "status_reason": "Required direct details are absent from the stored summary, so this remains unverified. External material is unread. Actual performance, non-performance and adherence-subgroup results are unverified.", "missingness": "Actual performance, non-performance and adherence-subgroup results are unverified.", "uncertainty": "Do not estimate effects in high adherers or an optimal frequency. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Player/team performance records, crossover and prespecified adherence analyses" }, { "item_id": "N10", "question_type": "Evidence condition", "question": "What warm-up did the control group actually perform?", "needed": "Actual control activities, existing programs and prohibited/permitted exposure", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: What warm-up did the control group actually perform?", "application_exception": "Do not invent control conditions when the comparison description is absent.", "criterion": "Separate between-arm values from the unresolved specific control exposure.", "basis": "M03 §3.2.2–3.2.3; reverse-direction labeling and assessment adaptations are our own design / M03 §3.2.3, M08 §8.2.2–8.2.3; our own application", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If the original control description is supplied, record elements shared with and different from the intervention.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "Stored material presents between-arm ACL results but no specific description of the control warm-up.", "condition_status": "Unverified", "status_reason": "Required direct details are absent from the stored summary, so this remains unverified. External material is unread. The control cannot be confirmed as no exercise or usual warm-up.", "missingness": "The control cannot be confirmed as no exercise or usual warm-up.", "uncertainty": "Do not invent control conditions when the comparison description is absent. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Actual control activities, existing programs and prohibited/permitted exposure" }, { "item_id": "N11", "question_type": "Evidence condition", "question": "Were football training, matches and other prevention exposures shared?", "needed": "Training, matches, other prevention, baseline injury and adjustment information by arm", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Were football training, matches and other prevention exposures shared?", "application_exception": "Do not state that other simultaneous exposures were absent.", "criterion": "Retain the Knee Control comparison alongside uncertainty about simultaneous conditions.", "basis": "M03 §3.2.3, M08 §8.2.2–8.2.3; Chamgap adaptation / M03 §3.2.2–3.2.3; reverse-direction labels and measurement adaptations are Chamgap designs / M19 §19.2.2–19.2.4 on design considerations; detailed confounding records are a Chamgap design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If concomitant-exposure material is supplied, record shared elements separately from between-arm differences.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The football setting and Knee Control exposure are preserved, but the summary lacks the balance of concomitant training, match exposure and other prevention programs.", "condition_status": "Unverified", "status_reason": "Required direct details are absent from the stored summary, so this remains unverified. External material is unread. Balance of concomitant exposures and baseline risk is unverified.", "missingness": "Balance of concomitant exposures and baseline risk is unverified.", "uncertainty": "Do not state that other simultaneous exposures were absent. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Training, matches, other prevention, baseline injury and adjustment information by arm" }, { "item_id": "N12", "question_type": "Evidence condition", "question": "Are the timing and duration of one-season observation clear?", "needed": "Season dates, entry/exposure/follow-up start/end and timing of individual losses", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Are the timing and duration of one-season observation clear?", "application_exception": "Do not replace one season with an unsupported number of months or long-term follow-up.", "criterion": "Distinguish one-season results from gaps in exact observation windows.", "basis": "M03 §3.2.4, M15 §15.3.1–15.3.3; question-specific outcome adaptations are our own design / M03 §3.2.1–3.2.4; dose, persistence and effect-modification details are our own design / M19 §19.2 design-specific harm questions; temporal details are our own design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If the original follow-up table is supplied, record the actual one-season observation window and individual periods lost.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The selected question and original summary are limited to one-season results. Exact start/end dates and individual observation periods are absent from the summary.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. Exact calendar duration and follow-up time per player are unverified.", "missingness": "Exact calendar duration and follow-up time per player are unverified.", "uncertainty": "Do not replace one season with an unsupported number of months or long-term follow-up. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Season dates, entry/exposure/follow-up start/end and timing of individual losses" }, { "item_id": "N13", "question_type": "Evidence condition", "question": "How were ACL injury events defined?", "needed": "Event definitions, handling of recurrent events, diagnostic criteria and prior injury", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: How were ACL injury events defined?", "application_exception": "Do not transfer all-ACL results to specific events such as non-contact or recurrent injury.", "criterion": "Distinguish the original level of ACL injury-rate definition from unresolved details.", "basis": "M03 §3.2.4, M15 §15.3.1–15.3.3; outcome adaptations by question are our own design / M08 Table 8.2.a, M03 §3.2.4; our own application", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If original event definitions and adjudication tables are supplied, record the actual included/excluded ACL events.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The preserved primary outcome is ACL injury rate per football exposure. Detailed definitions of complete/partial tears, first/recurrent injury and contact/non-contact injury are absent from the summary.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. Detailed ACL event definitions and handling of recurrent events are unverified.", "missingness": "Detailed ACL event definitions and handling of recurrent events are unverified.", "uncertainty": "Do not transfer all-ACL results to specific events such as non-contact or recurrent injury. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Event definitions, handling of recurrent events, diagnostic criteria and prior injury" }, { "item_id": "N14", "question_type": "Evidence condition", "question": "What do assessment of suspected injuries and provision of MRI establish?", "needed": "Diagnostic pathway, actual MRI performance/confirmation denominators and missing assessments", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: What do assessment of suspected injuries and provision of MRI establish?", "application_exception": "Do not change MRI being offered into MRI confirmation of every event.", "criterion": "Record the original assessment process separately from uncertainty about imaging confirmation.", "basis": "M08 Table 8.2.a, M03 §3.2.4; own application / M03 §3.2.4, M15 §15.3.1–15.3.3; question-specific outcome adaptations are our own design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If original adjudication material is supplied, distinguish suspected injury, diagnosis and imaging confirmation stages and denominators.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "Preserve the statement that a study physician assessed suspected injuries and MRI was offered. This does not state that MRI confirmed every event.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. Actual MRI use and the confirmation method for every ACL event are unverified.", "missingness": "Actual MRI use and the confirmation method for every ACL event are unverified.", "uncertainty": "Do not change MRI being offered into MRI confirmation of every event. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Diagnostic pathway, actual MRI performance/confirmation denominators and missing assessments" }, { "item_id": "N15", "question_type": "Evidence condition", "question": "Which assessor's masking is preserved?", "needed": "Masking, unmasking, group guesses and assessment differences by assessor", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Which assessor's masking is preserved?", "application_exception": "Do not expand one role's masking to double blinding or masking of every process.", "criterion": "Preserve masking within the original stated role.", "basis": "M08 Table 8.2.a, M03 §3.2.4; our own application / M08 §8.1–8.2.3; our own application", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If original methods are supplied, record masking by assessment role and the event-detection pathway.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The original summary states that the physician adjudicating the primary outcome was masked. Masking of players, coaches, other assessors and analysts is absent from the summary.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. Masking beyond the primary-outcome physician and differences in injury-reporting processes are unverified.", "missingness": "Masking beyond the primary-outcome physician and differences in injury-reporting processes are unverified.", "uncertainty": "Do not expand one role's masking to double blinding or masking of every process. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Masking, unmasking, group guesses and assessment differences by assessor" }, { "item_id": "N16", "question_type": "Evidence condition", "question": "What are the ACL event counts and player denominators?", "needed": "Numbers of affected people/events and whether arm-specific player denominators concern allocation, observation or analysis", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: What are the ACL event counts and player denominators?", "application_exception": "Do not newly total the arms, events or participants, or calculate proportions.", "criterion": "Preserve original event/player denominators and proportions, with denominator-role gaps visible.", "basis": "M08 Table 8.2.a, M15 §15.3, M19 §19.1.2–19.2.4; design-specific adaptations are Chamgap design / M03 §3.2.4, M15 §15.3.1–15.3.3; question-specific outcome adaptations are Chamgap design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If original results/flow tables are supplied, record the analysis stage to which each event and player denominator belongs.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "Preserve ACL injury as 7/2,479 (0.28%) in the intervention arm versus 14/2,085 (0.67%) in control. Retain the original values and arm order.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. The exact allocation/follow-up/analysis role of each player denominator and details of recurrent-event handling are unverified.", "missingness": "The exact allocation/follow-up/analysis role of each player denominator and details of recurrent-event handling are unverified.", "uncertainty": "Do not newly total the arms, events or participants, or calculate proportions. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Numbers of affected people/events and whether arm-specific player denominators concern allocation, observation or analysis" }, { "item_id": "N17", "question_type": "Evidence condition", "question": "What is the exposure-adjusted relative-rate result and interval?", "needed": "Adjustment model, cluster handling, estimand and original RR/CI", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: What is the exposure-adjusted relative-rate result and interval?", "application_exception": "Do not recalculate RR or CI from the player proportions.", "criterion": "Attribute the preserved exposure-adjusted RR and original CI/P only to the corresponding outcome.", "basis": "M03 §3.2.4, M15 §15.3.1–15.3.3; question-specific outcome adaptations are our own design / M08 Table 8.2.a, M15 §15.3, M19 §19.1.2–19.2.4; design-specific adaptations are our own design / M15 §15.3.1–15.3.3; our own application", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If the original analytical model is supplied, link the original RR to its adjustment method and estimand.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "Preserve exposure-adjusted RR 0.36 (95% CI 0.15~0.85), P=.02. The selected subclaim's favorable-RR note is also original history.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. The specific adjustment model, cluster handling and covariates are unverified.", "missingness": "The specific adjustment model, cluster handling and covariates are unverified.", "uncertainty": "Do not recalculate RR or CI from the player proportions. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Adjustment model, cluster handling, estimand and original RR/CI" }, { "item_id": "N18", "question_type": "Evidence condition", "question": "What are the unit, direction and interval of the absolute rate difference?", "needed": "Absolute rate-difference model, unit, arm direction and CI", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: What are the unit, direction and interval of the absolute rate difference?", "application_exception": "Do not convert it to a percentage-point difference in player risk or NNT.", "criterion": "Display the original absolute rate difference per 1,000 player-hours and its CI unchanged.", "basis": "M03 §3.2.4, M15 §15.3.1–15.3.3; question-specific outcome adaptations are our own design / M08 Table 8.2.a, M15 §15.3, M19 §19.1.2–19.2.4; design-specific adaptations are our own design / M15 §15.3.1–15.3.3; our own application", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If the original absolute rate-difference analysis is supplied, record differences in the original unit and estimand.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "Preserve the original summary's absolute rate difference of −0.07 per 1,000 player-hours (95% CI −0.13~0.001), with the interval including zero.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. The detailed relationship between the absolute rate-difference and RR models is unverified.", "missingness": "The detailed relationship between the absolute rate-difference and RR models is unverified.", "uncertainty": "Do not convert it to a percentage-point difference in player risk or NNT. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Absolute rate-difference model, unit, arm direction and CI" }, { "item_id": "N19", "question_type": "Evidence condition", "question": "Are player proportions, RR and absolute rate difference distinguished?", "needed": "Relationships between measures, denominators, models and effects of interest", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Are player proportions, RR and absolute rate difference distinguished?", "application_exception": "Do not automatically judge different interval interpretations as data conflict, zero effect or equivalence.", "criterion": "Preserve each measure's original values and different units/intervals alongside one another.", "basis": "M03 §3.2.4, M15 §15.3.1–15.3.3; question-specific outcome adaptations are our own design / M04 §4.6.3, M15 §15.3.1–15.3.3; status separation is our own design / M15 §15.3.1–15.3.3; our own application", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If analysis details are supplied, distinguish the original meaning and applicability of the different measures.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The original material includes player event proportions, exposure-adjusted RR and absolute rate difference per 1,000 player-hours. The RR interval is favorable, while the absolute rate-difference interval includes zero.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. Model details for each measure are unverified.", "missingness": "Model details for each measure are unverified.", "uncertainty": "Do not automatically judge different interval interpretations as data conflict, zero effect or equivalence. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Relationships between measures, denominators, models and effects of interest" }, { "item_id": "N20", "question_type": "Evidence condition", "question": "Are analytical details accounting for the cluster design verified?", "needed": "Original analytical equation, cluster adjustment, stratification variables, ICC and sensitivity analyses", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Are analytical details accounting for the cluster design verified?", "application_exception": "A cluster-trial label alone does not establish completed cluster adjustment in every analysis.", "criterion": "Distinguish what is verified about design from what is verified about adjustment models.", "basis": "M08 §8.1–8.2.3; own application / M08 §8.2.2, M15 §15.3.1; own application / M15 §15.3.1–15.3.3; own application", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If the original analysis plan/statistical methods are supplied, record the cluster structure and handling of each estimate.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The original summary includes a stratified cluster trial and exposure-adjusted RR. Actual analyses of ICC, standard errors and stratification/cluster variables are absent from the summary.", "condition_status": "Unverified", "status_reason": "Required direct details are absent from the stored summary, so this remains unverified. External material is unread. Details of cluster adjustment, ICC and sensitivity analyses are unverified.", "missingness": "Details of cluster adjustment, ICC and sensitivity analyses are unverified.", "uncertainty": "A cluster-trial label alone does not establish completed cluster adjustment in every analysis. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Original analytical equation, cluster adjustment, stratification variables, ICC and sensitivity analyses" }, { "item_id": "N21", "question_type": "Evidence condition", "question": "What are the actual football exposure-time denominators and collection methods?", "needed": "Exposure time by arm, training/match distinction, collection gaps and individual time", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: What are the actual football exposure-time denominators and collection methods?", "application_exception": "Do not back-calculate player-hours from RR, rate differences or event counts.", "criterion": "Identify the exposure-time outcome and leave actual time denominators unverified.", "basis": "M08 Table 8.2.a, M15 §15.3, M19 §19.1.2–19.2.4; design-specific adaptations are our own design / M03 §3.2.4, M15 §15.3.1–15.3.3; question-specific outcome adaptations are our own design / M08 Table 8.2.a, M03 §3.2.4; own application", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If the original exposure-time table is supplied, link time denominators and event counts within the same observation window.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The outcome is ACL injury rate per football exposure, but total player-hours by arm, training/match separation and time-recording methods are absent from the summary.", "condition_status": "Unverified", "status_reason": "Required direct details are absent from the stored summary, so this remains unverified. External material is unread. Total exposure time by arm and missing time records are unverified.", "missingness": "Total exposure time by arm and missing time records are unverified.", "uncertainty": "Do not back-calculate player-hours from RR, rate differences or event counts. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Exposure time by arm, training/match distinction, collection gaps and individual time" }, { "item_id": "N22", "question_type": "Evidence condition", "question": "Is the ITT label distinguished from actual analytical exclusions?", "needed": "Analysis-population definitions, excluded clubs/players and handling of clusters without data", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Is the ITT label distinguished from actual analytical exclusions?", "application_exception": "The ITT name does not establish that the full randomized population was analyzed.", "criterion": "Preserve the original ITT label alongside the limitation of analytical exclusions.", "basis": "M08 §8.2.2, M15 §15.3.1; our own application / M08 Table 8.2.a, M15 §15.3, M19 §19.1.2–19.2.4; adaptations by study design are our own design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If original analytical flow and sensitivity material are supplied, distinguish the ITT label from actual inclusion/exclusion.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "Preserve the original statement that the paper called its analysis ITT but excluded clubs that supplied no data. It is not certified as a complete analysis of everyone as randomized.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. Allocation, participant counts and handling of missing outcomes for excluded clusters are unverified.", "missingness": "Allocation, participant counts and handling of missing outcomes for excluded clusters are unverified.", "uncertainty": "The ITT name does not establish that the full randomized population was analyzed. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Analysis-population definitions, excluded clubs/players and handling of clusters without data" }, { "item_id": "N23", "question_type": "Evidence condition", "question": "How are losses among league-entry clubs separated from trial scale?", "needed": "Recruitment/allocation/data-supply flow by stage, attrition reasons/timing by arm", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: How are losses among league-entry clubs separated from trial scale?", "application_exception": "Do not subtract the original numbers to calculate new completed-cluster counts or attrition rates.", "criterion": "Keep the original descriptions of league entry and preserved trial scale separately.", "basis": "M08 Table 8.2.a, M15 §15.3, M19 §19.1.2–19.2.4; design-specific adaptations are our own design / M08 §8.2.2, M15 §15.3.1; our own application", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If the original cluster flowchart is supplied, separately link attrition stage, arm and reason.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The original summary records loss of 61 of 291 league-entry clubs (21%). Preserve this alongside the trial scale of 230 clubs, 341 teams and 4,564 players.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. Whether attrition occurred before or after allocation and its distribution by arm are unverified.", "missingness": "Whether attrition occurred before or after allocation and its distribution by arm are unverified.", "uncertainty": "Do not subtract the original numbers to calculate new completed-cluster counts or attrition rates. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Recruitment/allocation/data-supply flow by stage, attrition reasons/timing by arm" }, { "item_id": "N24", "question_type": "Evidence condition", "question": "Are player missingness and loss to follow-up verified?", "needed": "Player flow by arm, missingness reasons, missing events/exposure time and sensitivity analyses", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Are player missingness and loss to follow-up verified?", "application_exception": "Do not transfer club attrition into a player attrition rate or set missing events to zero.", "criterion": "Separate cluster losses from gaps in individual-level missingness.", "basis": "M08 Table 8.2.a, M15 §15.3, M19 §19.1.2–19.2.4; design-specific adaptations are our own design / M08 §8.2.2, M15 §15.3.1; our own application / M19 §19.1.2–19.2.4, M04 §4.6.3; our own application", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If original participant flow and missing-data handling are supplied, distinguish player denominators from missing outcomes.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "Cluster attrition/analytical exclusions are preserved, but the summary lacks counts and handling of individual follow-up losses, withdrawals and missing injury assessments.", "condition_status": "Unverified", "status_reason": "Required direct details are absent from the stored summary, so this remains unverified. External material is unread. Player-level missingness, loss denominators and imputation/weighting methods are unverified.", "missingness": "Player-level missingness, loss denominators and imputation/weighting methods are unverified.", "uncertainty": "Do not transfer club attrition into a player attrition rate or set missing events to zero. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Player flow by arm, missingness reasons, missing events/exposure time and sensitivity analyses" }, { "item_id": "N25", "question_type": "Evidence condition", "question": "Were registration and prespecified outcomes/analysis plans read directly?", "needed": "Registration timing, prespecified outcome definitions, models, amendments and SAP", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Were registration and prespecified outcomes/analysis plans read directly?", "application_exception": "Do not turn a registration number or primary-outcome label into certification of prespecification.", "criterion": "Display the original labels alongside the lack of direct registration comparison.", "basis": "M08 Table 8.2.a, M04 §4.6.3; our own application / M04 §4.5–4.6 material-collection and selection principles; separation of access and reading and hyperlink rules are our own design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If the user supplies original registration/planning material, distinguish definitions at that time from reported results.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The original summary records NCT00894595 and ACL as the primary outcome. Original registration, protocol and SAP material was not read in this work.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. Registration timing, outcome hierarchy/amendments and prespecified analyses remain externally unread.", "missingness": "Registration timing, outcome hierarchy/amendments and prespecified analyses remain externally unread.", "uncertainty": "Do not turn a registration number or primary-outcome label into certification of prespecification. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Registration timing, prespecified outcome definitions, models, amendments and SAP" }, { "item_id": "N26", "question_type": "Evidence condition", "question": "Is the 50% sample-size assumption a success threshold?", "needed": "Original sample-size assumptions, design targets and clinical-importance criteria", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Is the 50% sample-size assumption a success threshold?", "application_exception": "Do not use 50% as a new success/failure criterion or an achieved effect.", "criterion": "Do not convert an original planning assumption into a result-decision threshold.", "basis": "M15 §15.3.1–15.3.3; Chamgap adaptation / M08 Table 8.2.a, M04 §4.6.3; Chamgap adaptation", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If the original sample-size plan and separate importance criteria are supplied, distinguish design assumptions from decision criteria.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The existing counterview explicitly says that the 50% reduction assumed in sample-size calculation was not a success threshold.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. The summary has no validated minimally important difference or clinical success criterion.", "missingness": "The summary has no validated minimally important difference or clinical success criterion.", "uncertainty": "Do not use 50% as a new success/failure criterion or an achieved effect. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Original sample-size assumptions, design targets and clinical-importance criteria" }, { "item_id": "N27", "question_type": "Evidence condition", "question": "Is the severe knee-injury result the same as the ACL result?", "needed": "Severe-injury definition, arm-specific events/denominators, CI and analysis hierarchy", "role": "Supplementary", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Is the severe knee-injury result the same as the ACL result?", "application_exception": "Do not copy ACL RR/CI to severe knee injury or turn non-significance into zero effect.", "criterion": "Keep the original RR/P and gaps for other knee injuries separate.", "basis": "M04 §4.6.3, M15 §15.3.1–15.3.3; status separation is our own design / M03 §3.2.4, M15 §15.3.1–15.3.3; question-specific outcome adaptations are our own design / M03 §3.2.4; boundaries of our own extensions", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If the original secondary-results table is supplied, record the severe-injury outcome definition, denominators and interval.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "Preserve the original null-result wording for severe knee injury, RR 0.70, P=.18. This is a different outcome from the ACL relative-rate result.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. The severe-injury CI, event denominators and definition are unverified.", "missingness": "The severe-injury CI, event denominators and definition are unverified.", "uncertainty": "Do not copy ACL RR/CI to severe knee injury or turn non-significance into zero effect. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Severe-injury definition, arm-specific events/denominators, CI and analysis hierarchy" }, { "item_id": "N28", "question_type": "Evidence condition", "question": "What is the result for all acute knee injuries?", "needed": "Acute-injury definition/composition, arm-specific events/denominators and CI", "role": "Supplementary", "role_reason": "Condition for distinguishing the original findings and gaps for this question: What is the result for all acute knee injuries?", "application_exception": "Do not transfer the favorable ACL result into a preventive effect for all acute injuries.", "criterion": "Separate the original RR/P for all acute injuries from ACL results.", "basis": "M04 §4.6.3, M15 §15.3.1–15.3.3; status separation is our own design / M03 §3.2.4, M15 §15.3.1–15.3.3; question-specific outcome adaptations are our own design / M03 §3.2.4; boundaries of our own extensions", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If the original acute-injury results table is supplied, separately record that result's scope and interval.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "Preserve the original null-result wording for all acute knee injuries, RR 0.92, P=.71. Do not broaden the selected ACL claim into prevention of all knee injuries.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. The acute-injury CI, event denominators and component definitions are unverified.", "missingness": "The acute-injury CI, event denominators and component definitions are unverified.", "uncertainty": "Do not transfer the favorable ACL result into a preventive effect for all acute injuries. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Acute-injury definition/composition, arm-specific events/denominators and CI" }, { "item_id": "N29", "question_type": "Evidence condition", "question": "What are the scope of selective secondary-outcome reporting and multiple analyses?", "needed": "Prespecified outcome list, all analyses, multiplicity and unreported results", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: What are the scope of selective secondary-outcome reporting and multiple analyses?", "application_exception": "Do not delete unfavorable secondary results or assert that results absent from the summary did not exist.", "criterion": "Retain preserved no-difference results and gaps in the complete reporting scope.", "basis": "M08 Table 8.2.a, M04 §4.6.3; our own application / M04 §4.6.3, M15 §15.3.1–15.3.3; separation of statuses is our own design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If original plans and complete results tables are supplied, record planned/reported differences and analysis scope.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The stored summary includes the primary ACL outcome alongside severe/all acute knee-injury results. The complete planned outcome list and handling of multiple analyses are absent from the summary.", "condition_status": "Unverified", "status_reason": "Required direct details are absent from the stored summary, so this remains unverified. External material is unread. All secondary/exploratory outcomes and multiplicity handling are unverified.", "missingness": "All secondary/exploratory outcomes and multiplicity handling are unverified.", "uncertainty": "Do not delete unfavorable secondary results or assert that results absent from the summary did not exist. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Prespecified outcome list, all analyses, multiplicity and unreported results" }, { "item_id": "N30", "question_type": "Evidence condition", "question": "Can independent replication and differences in conditions be verified?", "needed": "Related trials/reports, study families, results by condition and overlapping populations", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Can independent replication and differences in conditions be verified?", "application_exception": "One report, an NCT label or R1 does not certify current independence.", "criterion": "Keep unconfirmed unique trial and aggregate participant counts null.", "basis": "M04 §4.6.1–4.6.2 distinction between studies and reports; cohort and outcome linking is our own application / M04 §4.6.1–4.6.2, M15 §15.3.1; our own application", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If the related original list is supplied, record relationships between repeat citations and unique families.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "Preserve original replication axis R1 as history. The designated summary currently has one evidence-list entry and one citation; no new independent-family or participant total is established.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. Unique trial counts, independent replication and new participant totals are unconfirmed.", "missingness": "Unique trial counts, independent replication and new participant totals are unconfirmed.", "uncertainty": "One report, an NCT label or R1 does not certify current independence. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Related trials/reports, study families, results by condition and overlapping populations" }, { "item_id": "N31", "question_type": "Evidence condition", "question": "What is effect modification by subgroup or performance level?", "needed": "Prespecified subgroup hypotheses, interactions, arm-specific denominators and estimates", "role": "Supplementary", "role_reason": "Condition for distinguishing the original findings and gaps for this question: What is effect modification by subgroup or performance level?", "application_exception": "Do not create favorable small-subgroup results, optimal performance levels or effects in a particular player.", "criterion": "Do not expand whole-population results to unverified subgroups.", "basis": "M03 §3.2.1; detailed population conditions are our own design / M03 §3.2.1–3.2.4; dose, persistence and effect-modification details are our own design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If subgroup analyses are supplied, record the whole randomized comparison separately from effect-modification questions.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The original summary has the whole population's one-season results, but no prespecified interactions by age, baseline injury or degree of performance.", "condition_status": "Unverified", "status_reason": "Required direct details are absent from the stored summary, so this remains unverified. External material is unread. Direct results and interactions for population/adherence subgroups are unverified.", "missingness": "Direct results and interactions for population/adherence subgroups are unverified.", "uncertainty": "Do not create favorable small-subgroup results, optimal performance levels or effects in a particular player. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Prespecified subgroup hypotheses, interactions, arm-specific denominators and estimates" }, { "item_id": "N32", "question_type": "Evidence condition", "question": "Does this answer persistence of effect beyond one season?", "needed": "Post-season follow-up, results after stopping and subsequent reports from the same cohort", "role": "Supplementary", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Does this answer persistence of effect beyond one season?", "application_exception": "Do not expand a one-season effect to long-term protection or replication in every season.", "criterion": "Separate the selected period from long-term gaps.", "basis": "M03 §3.2.1–3.2.4; dose, persistence and effect-modification details are our own design / M03 §3.2.4, M15 §15.3.1–15.3.3; question-specific outcome adaptations are our own design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If long-term material is supplied, distinguish same-cohort follow-up reports from new trials.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The existing counterview explicitly says that one-season results cannot be expanded to long-term protection.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. Persistence beyond the season, post-discontinuation results and long-term injuries are unverified.", "missingness": "Persistence beyond the season, post-discontinuation results and long-term injuries are unverified.", "uncertainty": "Do not expand a one-season effect to long-term protection or replication in every season. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Post-season follow-up, results after stopping and subsequent reports from the same cohort" }, { "item_id": "N33", "question_type": "Evidence condition", "question": "Does injury rate answer function, surgery, return to play and quality of life?", "needed": "Separate patient/player-centered outcomes, scales, periods and denominators", "role": "Supplementary", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Does injury rate answer function, surgery, return to play and quality of life?", "application_exception": "Do not make fewer ACL events a guarantee of every subsequent benefit for individual players.", "criterion": "Distinguish the actual event outcome from unverified subsequent outcomes.", "basis": "M03 §3.2.4; our own boundary on extensions / M03 §3.2.4, M15 §15.3.1–15.3.3; outcome adaptations by question are our own design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If these outcomes are supplied, distinguish direct evidence about ACL events from clinical follow-up outcomes.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The selected outcome is one-season ACL injury rate. The summary has no direct effects on function, surgery, return to play, quality of life or healthcare use.", "condition_status": "Unverified", "status_reason": "Required direct details are absent from the stored summary, so this remains unverified. External material is unread. Direct results for function, return to play, quality of life and surgery are unverified.", "missingness": "Direct results for function, return to play, quality of life and surgery are unverified.", "uncertainty": "Do not make fewer ACL events a guarantee of every subsequent benefit for individual players. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Separate patient/player-centered outcomes, scales, periods and denominators" }, { "item_id": "N34", "question_type": "Harm information", "question": "How were warm-up-related harms collected?", "needed": "Systematic/spontaneous harm collection, event definitions, severity and discontinuation records", "role": "Supplementary", "role_reason": "Condition for distinguishing the original findings and gaps for this question: How were warm-up-related harms collected?", "application_exception": "Do not turn unread material into zero harm events or direct current verification of non-reporting.", "criterion": "Separate historical non-reporting wording from currently unverified harms.", "basis": "M19 §19.1.2–19.2.4; own application / M19 §19.1.2–19.2.4; detailed distinctions are our own design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If original safety material is supplied, record the actual collection methods and event scope.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The original summary states that prespecified safety outcomes or an adverse-event table attributing events to the warm-up were not reported. This is the historical summary; external original material is currently unread.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. No harm-collection methods or harm tables have been directly read in this work.", "missingness": "No harm-collection methods or harm tables have been directly read in this work.", "uncertainty": "Do not turn unread material into zero harm events or direct current verification of non-reporting. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Systematic/spontaneous harm collection, event definitions, severity and discontinuation records" }, { "item_id": "N35", "question_type": "Harm information", "question": "What are the onset and observation times for harms?", "needed": "Time of each harm event, intervention exposure, recovery/discontinuation and follow-up windows", "role": "Supplementary", "role_reason": "Condition for distinguishing the original findings and gaps for this question: What are the onset and observation times for harms?", "application_exception": "Seasonal exposure alone does not establish harm causality or time denominators.", "criterion": "Leave harm timing unverified when no original record exists.", "basis": "M19 §19.2 concerns harm questions by study design; temporal-relationship details are our own design / M19 §19.1.2–19.2.4; our own application", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If timing material is supplied, record the exposure/event sequence and observation limits.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "Only one-season exposure is preserved. Onset/recovery and stopping times for warm-up-related events are absent from the summary.", "condition_status": "Unverified", "status_reason": "Required direct details are absent from the stored summary, so this remains unverified. External material is unread. Harm onset, discontinuation/recovery and observation windows are unverified.", "missingness": "Harm onset, discontinuation/recovery and observation windows are unverified.", "uncertainty": "Seasonal exposure alone does not establish harm causality or time denominators. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Time of each harm event, intervention exposure, recovery/discontinuation and follow-up windows" }, { "item_id": "N36", "question_type": "Harm information", "question": "What is the actual comparison of intervention-related harms?", "needed": "Distinction between intervention-related harms and general football injuries, and between-arm harm tables", "role": "Supplementary", "role_reason": "Condition for distinguishing the original findings and gaps for this question: What is the actual comparison of intervention-related harms?", "application_exception": "Do not use acute knee-injury RR 0.92 as equivalence or harmlessness for all intervention harms.", "criterion": "Separate efficacy injury outcomes from comparisons of intervention harms.", "basis": "M19 §19.2.2–19.2.4, M03 §3.2.3; own application / M19 §19.1.2–19.2.4; own application", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If the original safety comparison is supplied, distinguish background football injuries from intervention-attributed harms.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "ACL and other knee-injury results are preserved, but the summary has no between-arm table of adverse events attributed to the warm-up.", "condition_status": "Unverified", "status_reason": "Required direct details are absent from the stored summary, so this remains unverified. External material is unread. Between-arm comparison of intervention-related harms and distinction from background events are unverified.", "missingness": "Between-arm comparison of intervention-related harms and distinction from background events are unverified.", "uncertainty": "Do not use acute knee-injury RR 0.92 as equivalence or harmlessness for all intervention harms. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Distinction between intervention-related harms and general football injuries, and between-arm harm tables" }, { "item_id": "N37", "question_type": "Harm information", "question": "Are event, person and time denominators for harms known?", "needed": "People exposed/assessed for harms, follow-up time and numbers of affected people/events", "role": "Supplementary", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Are event, person and time denominators for harms known?", "application_exception": "Do not copy efficacy denominators into harm denominators or newly calculate harm incidence.", "criterion": "Do not create safety frequencies without original harm denominators.", "basis": "M19 §19.1.2–19.2.4; our own application / M08 Table 8.2.a, M15 §15.3, M19 §19.1.2–19.2.4; adaptations by study design are our own design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If original safety denominators are supplied, distinguish them from efficacy-analysis denominators and link them to the applicable harm material.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The scale of 4,564 players and ACL event/player denominators are preserved, but actual player, time and event denominators included in harm collection are absent from the summary.", "condition_status": "Unverified", "status_reason": "Required direct details are absent from the stored summary, so this remains unverified. External material is unread. Actual harm-incidence denominators and event counts are unverified.", "missingness": "Actual harm-incidence denominators and event counts are unverified.", "uncertainty": "Do not copy efficacy denominators into harm denominators or newly calculate harm incidence. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "People exposed/assessed for harms, follow-up time and numbers of affected people/events" }, { "item_id": "N38", "question_type": "Harm information", "question": "Are alternative causes and concomitant exposures for harms verified?", "needed": "Baseline risk, concomitant training, other exposures and attribution evidence for each event", "role": "Supplementary", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Are alternative causes and concomitant exposures for harms verified?", "application_exception": "Do not attribute every injury during football to the warm-up.", "criterion": "Separate harm attribution from gaps in environmental information.", "basis": "M19 §19.2.2–19.2.4 design considerations; detailed confounding records are our own design / M03 §3.2.3, M08 §8.2.2–8.2.3; our own application", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If original event-level material is supplied, record simultaneous exposures and alternative explanations.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The football setting and Knee Control intervention are preserved, but the summary lacks alternative explanations involving prior injury, matches/training or other exposures for intervention-attributed events.", "condition_status": "Unverified", "status_reason": "Required direct details are absent from the stored summary, so this remains unverified. External material is unread. Alternative information for attribution of intervention-related harms is unverified.", "missingness": "Alternative information for attribution of intervention-related harms is unverified.", "uncertainty": "Do not attribute every injury during football to the warm-up. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Baseline risk, concomitant training, other exposures and attribution evidence for each event" }, { "item_id": "N39", "question_type": "Harm information", "question": "What is the scope of missing harm reports and follow-up?", "needed": "Missing harm collection, cluster/player losses, reporting pathways and surveillance differences", "role": "Supplementary", "role_reason": "Condition for distinguishing the original findings and gaps for this question: What is the scope of missing harm reports and follow-up?", "application_exception": "Do not treat analytical exclusions as absence of safety events.", "criterion": "Distinguish efficacy attrition history from direct material about missing harms.", "basis": "M19 §19.1.2–19.2.4, M04 §4.6.3; own application / M08 Table 8.2.a, M15 §15.3, M19 §19.1.2–19.2.4; design-specific adaptations are our own design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If the original safety follow-up table is supplied, link exclusion/attrition to the scope of missing harms.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "Exclusion of clubs without data and club attrition history are preserved. Their impact on harm collection is absent from the summary.", "condition_status": "Unverified", "status_reason": "Required direct details are absent from the stored summary, so this remains unverified. External material is unread. Completeness of harm collection, events among those lost and reporting pathways are unverified.", "missingness": "Completeness of harm collection, events among those lost and reporting pathways are unverified.", "uncertainty": "Do not treat analytical exclusions as absence of safety events. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Missing harm collection, cluster/player losses, reporting pathways and surveillance differences" }, { "item_id": "N40", "question_type": "Harm information", "question": "Are independent replication materials for harms available?", "needed": "Families of harm reports/cases, duplicate citations and population/exposure agreement", "role": "Supplementary", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Are independent replication materials for harms available?", "application_exception": "Do not count citations, registration labels, teams or players as separate harm replications.", "criterion": "Do not generate unconfirmed harm-replication counts.", "basis": "M04 §4.6.1–4.6.2; harm-material adaptations are Chamgap designs / M04 §4.6.1–4.6.2 on distinguishing studies from reports; cohort and outcome connections are Chamgap adaptations", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If related harm material is supplied, separate repeat citations from independent records.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The currently stored bibliography has one citation; the summary has no list of separate independent reports about warm-up-related harms.", "condition_status": "Unverified", "status_reason": "Required direct details are absent from the stored summary, so this remains unverified. External material is unread. Independent harm replication and unique event counts are unconfirmed.", "missingness": "Independent harm replication and unique event counts are unconfirmed.", "uncertainty": "Do not count citations, registration labels, teams or players as separate harm replications. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Families of harm reports/cases, duplicate citations and population/exposure agreement" }, { "item_id": "N41", "question_type": "Harm information", "question": "What is the scope of harms and safety extensions beyond one season?", "needed": "Suitable direct material on long-term harms, other populations and rare harms", "role": "Supplementary", "role_reason": "Condition for distinguishing the original findings and gaps for this question: What is the scope of harms and safety extensions beyond one season?", "application_exception": "Do not create a new safety grade, causal certification or a conclusion that it is safe for every player.", "criterion": "Preserve parent safety history and leave unverified safety extensions visible.", "basis": "M19 §19.1.2–19.2.4; Chamgap adaptation / Chamgap's own interpretation boundary. M19 principles are referenced; no official causality tool was executed / M19 §19.1.2–19.2.4; Chamgap adaptation", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If suitable harm material is supplied, distinguish one-season/selected-population findings from extension to other scopes.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "Parent safety is Unknown. The original safety explanation says absence of intervention-related harms cannot be asserted. Other populations, long-term harms and rare harms have not been directly verified either.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. Long-term harms, vulnerable groups, rare harms and overall harmlessness are unverified.", "missingness": "Long-term harms, vulnerable groups, rare harms and overall harmlessness are unverified.", "uncertainty": "Do not create a new safety grade, causal certification or a conclusion that it is safe for every player. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Suitable direct material on long-term harms, other populations and rare harms" }, { "item_id": "N42", "question_type": "Evidence condition", "question": "What were funding, sponsorship and operational roles?", "needed": "Funding contracts, operational/analytical/reporting roles, program provision and data access", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: What were funding, sponsorship and operational roles?", "application_exception": "Do not inherit original independence axis I1 as fulfillment of current independence.", "criterion": "Preserve the original funding institutions and leave role gaps visible.", "basis": "CHAMGAP's own independence and attribution conditions. Official methodological sections used in this pilot do not guarantee every detail of this item / M04 §4.6.1–4.6.2, M15 §15.3.1; our own application", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If original funding/role declarations are supplied, separately record each institution's support and actual role.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The original summary records support from the Swedish Football Association, Folksam insurer, Swedish National Centre for Research in Sports and Hässleholm Hospital.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. Sponsors' detailed roles in design, analysis, writing and publication are unverified.", "missingness": "Sponsors' detailed roles in design, analysis, writing and publication are unverified.", "uncertainty": "Do not inherit original independence axis I1 as fulfillment of current independence. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Funding contracts, operational/analytical/reporting roles, program provision and data access" }, { "item_id": "N43", "question_type": "Evidence condition", "question": "What is the scope of author conflicts in the Korean and English originals?", "needed": "Original COI declaration, author roles, affiliations, remuneration relationships and translation scope", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: What is the scope of author conflicts in the Korean and English originals?", "application_exception": "Do not change paid author affiliations to the women's U19 team because the study population was female.", "criterion": "Preserve each language's original role description and state that external comparison has not occurred.", "basis": "Chamgap's own independence and attribution conditions. The official method sections used in this pilot do not endorse all of these detailed items / M04 §4.5, §4.6.3; limitations in the current material conversion concern review scope and Chamgap design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If original declarations/correction material are supplied, record the scope of the Korean/English wording and actual author roles.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "The Korean original describes remuneration for MW and MH as medical staff of the football association's U19 national team; the existing English original says the men's U19 team. Preserve both original descriptions.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. The complete original COI declaration and detailed Korean/English comparison remain externally unread.", "missingness": "The complete original COI declaration and detailed Korean/English comparison remain externally unread.", "uncertainty": "Do not change paid author affiliations to the women's U19 team because the study population was female. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Original COI declaration, author roles, affiliations, remuneration relationships and translation scope" }, { "item_id": "N44", "question_type": "Evidence condition", "question": "Are the reference date, corrections, empty values and original scope preserved?", "needed": "Original dates, corrections/retractions, current update scope and meaning of original empty values", "role": "Required", "role_reason": "Condition for distinguishing the original findings and gaps for this question: Are the reference date, corrections, empty values and original scope preserved?", "application_exception": "Do not turn an empty array into certification that all corrections are absent or borrow the reference date as a current clinical-review date.", "criterion": "Preserve original dates, empty values and language history while limiting the current read scope.", "basis": "M04 §4.5, §4.6.3; current material-conversion limits reflect review scope and our own design / M03 §3.1, §3.2.1–3.2.4 question-clarification principles; detailed separation rules are our own design", "condition_origin": "Production based on original materials; existing content review remains incomplete", "proposed_research": "If actual update material is supplied, preserve the existing complete original separately from the new change event.", "current_reports": [ "R01" ], "existence": "Stored-summary linkage; existence/content of required external detail is unverified", "acquired_read": "Summary read; external materials not read", "observation": "Preserve the reference date 2026-08-26 and empty correction and deliberation records unchanged. Korean/English text and null/false/empty-string axes values are parent history; this is not a current complete literature review.", "condition_status": "Partly verified", "status_reason": "Partly verified for production by linking the stored summary’s original wording. This does not mean clinical content verification or passing review. The stored summary has no separate evidence-cutoff or classification-record keys, and no external check for current corrections/retractions was performed.", "missingness": "The stored summary has no separate evidence-cutoff or classification-record keys, and no external check for current corrections/retractions was performed.", "uncertainty": "Do not turn an empty array into certification that all corrections are absent or borrow the reference date as a current clinical-review date. Review of the existing content remains incomplete, and detailed external original material has not been verified.", "review_date": null, "reading_status": "Full text not read · Stored summary read", "additional_material": "Original dates, corrections/retractions, current update scope and meaning of original empty values" } ], "reports": [ { "report_id": "R01", "title": "Waldén M, Atroshi I, Magnusson H, Wagner P, Hägglund M. BMJ. 2012;344:e3042. PMID: 22556050.", "url": "https://pubmed.ncbi.nlm.nih.gov/22556050/", "report_type": "Stratified cluster-randomized trial report", "existence": "Report linked to the originally preserved evidence and citation lists", "acquired_read": "Summary read; external abstracts and full texts not read", "study_family": "F01", "independent_replication": false, "observed_result": "One-season ACL injury: 7/2,479 (0.28%) versus 14/2,085 (0.67%); exposure-adjusted RR 0.36 (95% CI 0.15~0.85), P=.02. Absolute rate difference −0.07 per 1,000 player-hours (95% CI −0.13~0.001). Original RR/P for other knee injuries and attrition/analytical exclusions are preserved separately.", "source_evidence_date": "2026-08-26", "materials": [ { "material_type": "Stored summary", "public_status": "Local preserved copy", "access_status": "Local preserved summary acquired", "acquired": true, "actually_read": "Summary read", "as_of": "2026-10-06T17:05:14.278593+09:00", "qualification": "The designated complete parent stored summary is preserved, with original evidence-list, bibliographic and Korean/English locations linked for production." }, { "material_type": "External abstract", "public_status": "Current public availability and detailed existence remain unverified", "access_status": "Access not attempted; not obtained", "acquired": false, "actually_read": "Not read", "as_of": null, "qualification": "A material entry retaining the original source link; no current access, link check or abstract reading occurred." }, { "material_type": "External full text", "public_status": "Current public availability and detailed existence remain unverified", "access_status": "Access not attempted; not obtained", "acquired": false, "actually_read": "Not read", "as_of": null, "qualification": "The bibliographic URL links the original identity; it does not establish a direct full-text access link or acquisition of the full text." }, { "material_type": "External registration", "public_status": "Current public availability and detailed existence remain unverified", "access_status": "Access not attempted; not obtained", "acquired": false, "actually_read": "Not read", "as_of": null, "qualification": "Only the registration string is preserved. Registration text, timing and prespecified planning content are unread." }, { "material_type": "Required material: protocol", "public_status": "Current public availability and detailed existence remain unverified", "access_status": "Access not attempted; not obtained", "acquired": false, "actually_read": "Not read", "as_of": null, "qualification": "Original planning material on event definitions, cluster allocation and control conditions is needed; its existence, public availability and acquisition are currently unverified." }, { "material_type": "Required material: SAP", "public_status": "Current public availability and detailed existence remain unverified", "access_status": "Access not attempted; not obtained", "acquired": false, "actually_read": "Not read", "as_of": null, "qualification": "Prespecified analyses of cluster handling, exposure-time models, ITT/missing data and multiplicity are needed and have not currently been acquired." }, { "material_type": "Required material: outcomes, denominators, and harms", "public_status": "Current public availability and detailed existence remain unverified", "access_status": "Access not attempted; not obtained", "acquired": false, "actually_read": "Not read", "as_of": null, "qualification": "Tables on club/player flow, time denominators, injury definitions/intervals and harm collection are needed and currently unread." }, { "material_type": "Required materials: funding and COI", "public_status": "Current public availability and detailed existence remain unverified", "access_status": "Access not attempted; not obtained", "acquired": false, "actually_read": "Not read", "as_of": null, "qualification": "The summary describes sponsorship/remuneration, but original declarations, sponsor roles and detailed Korean/English comparison remain unread." } ], "links": [ { "label": "PubMed", "url": "https://pubmed.ncbi.nlm.nih.gov/22556050/" } ] } ], "method_sources": [ { "id": "M03", "version": "Cochrane Handbook 6.5 (2024), chapter updated 2023-08", "url": "https://www.cochrane.org/authors/handbooks-and-manuals/handbook/current/chapter-03", "section": "§3.1, §3.2.1–3.2.3, MECIR C5/C7/C13", "official_principle": "Clearly record the question, eligibility conditions and reasons for changes, and distinguish variations in interventions.", "review_level": "Methodological principles stated in existing pilot materials and condition templates were referenced. The methodological text was not reviewed again in this work." }, { "id": "M04", "version": "Cochrane Handbook 6.5.1 (2025), chapter updated 2025-03", "url": "https://www.cochrane.org/authors/handbooks-and-manuals/handbook/current/chapter-04", "section": "§4.5, §4.6.1–4.6.3, MECIR C42", "official_principle": "Distinguish studies from reports and link them; do not omit a study solely because results are unreported.", "review_level": "Methodological principles stated in existing pilot materials and condition templates were referenced. The methodological text was not reviewed again in this work." }, { "id": "M08", "version": "Cochrane Handbook 6.5 (2024), chapter updated 2019-10", "url": "https://www.cochrane.org/authors/handbooks-and-manuals/handbook/current/chapter-08", "section": "§8.1–8.2.3, Table 8.2.a", "official_principle": "Define the outcome and effect of interest, then examine randomization, deviations, missing data, measurement and selective reporting.", "review_level": "Methodological principles stated in existing pilot materials and condition templates were referenced. The methodological text was not reviewed again in this work." }, { "id": "M15", "version": "Cochrane Handbook 6.5 (2024), chapter updated 2023-08", "url": "https://www.cochrane.org/authors/handbooks-and-manuals/handbook/current/chapter-15", "section": "§15.2.4, §15.3.1–15.3.3", "official_principle": "Distinguish effect estimates, intervals, importance and applicability. Sample size alone does not determine precision.", "review_level": "Methodological principles stated in existing pilot materials and condition templates were referenced. The methodological text was not reviewed again in this work." }, { "id": "M19", "version": "Cochrane Handbook 6.5 (2024), chapter updated 2019-10", "url": "https://www.cochrane.org/authors/handbooks-and-manuals/handbook/current/chapter-19", "section": "§19.1.2, §19.2.1–19.2.4", "official_principle": "Harm questions may require different designs, populations and follow-up from efficacy questions. Case reports do not establish incidence rates.", "review_level": "Methodological principles stated in existing pilot materials and condition templates were referenced. The methodological text was not reviewed again in this work." } ], "status_dictionary": { "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": "Review of existing content or actual review 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." }, "study_overlap": { "state": "Unverified", "unique_trial_count": null, "unique_participant_count": null, "reason": "Preserved context of the Waldén 2012 cluster-trial report. NCT00894595 is an original evidence-list label; no external registration comparison was performed. Clubs, teams, players, events, time points and measures are not counted as new families." }, "history": [ { "date": "2026-10-12", "kind": "Separation of public-facing pages and materials", "view_version": "1.0", "change": "A public view and materials were prepared from the existing 44 items. No new clinical search, verification-status change or scoring was performed." } ], "language": "en", "translation_date": "2026-10-12" }