{"id":"W1975096655","doi":"10.1503/cmaj.120988","title":"Nonuse of bicycle helmets and risk of fatal head injury: a proportional mortality, case–control study","year":2012,"lang":"en","type":"article","venue":"Canadian Medical Association Journal","topic":"Injury Epidemiology and Prevention","field":"Medicine","cited_by":75,"is_retracted":false,"has_abstract":true,"ca_institutions":"Office of the Chief Medical Examiner; Canadian Anesthesiologists' Society; McMaster University; University of Toronto; St. Michael's Hospital","funders":"Canadian Institutes of Health Research","keywords":"Injury prevention; Medicine; Coroner; Poison control; Occupational safety and health; Cycling; Odds ratio; Suicide prevention; Confidence interval; Head injury; Human factors and ergonomics; Emergency medicine; Medical emergency; Surgery; Internal medicine; Geography; Pathology","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":true,"about_ca":true,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":["insufficient_payload"],"consensus_categories":[],"category_scores_codex":[0.008157264,0.00008918213,0.0003819229,0.0001740402,0.0001369004,0.00000470624,0.00004841282,0.0002272461,0.001095372],"category_scores_gemma":[0.003630241,0.00007425336,0.00009171368,0.0001223301,0.00007331256,0.0001220323,0.0000103884,0.0006300774,0.000007394318],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001810094,"about_ca_system_score_gemma":0.0008881657,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.005745059,"about_ca_topic_score_gemma":0.01664088,"domain_scores_codex":[0.9974681,0.0008251227,0.0006870128,0.00009385821,0.0006211348,0.0003048116],"domain_scores_gemma":[0.9978427,0.0002413519,0.0005770468,0.0000892057,0.0003038308,0.0009458549],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00008000779,0.0001928435,0.9858599,0.00001624966,0.0006257825,0.0002395572,0.0002980805,4.269855e-7,0.00002444696,0.00007476657,0.001539154,0.01104882],"study_design_scores_gemma":[0.001545537,0.000487848,0.9942473,0.00003949251,0.0004666537,0.001657059,0.0003487159,0.0000794613,0.00003196652,0.00009809607,0.0009359045,0.00006201526],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9971122,0.0002371323,0.0001444346,0.001479769,0.000329393,0.0002664634,0.0002263753,0.000004520542,0.0001996964],"genre_scores_gemma":[0.9986131,0.00004453989,0.0001177295,0.000544925,0.0006021781,0.000005168456,0.000009078963,0.000007053334,0.0000561885],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.0109868,"threshold_uncertainty_score":0.9998178,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01932932153639274,"score_gpt":0.3391399225543689,"score_spread":0.3198106010179762,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}