{"id":"W2998770856","doi":"10.1136/bjsports-2019-101011","title":"Mouthguard use in youth ice hockey and the risk of concussion: nested case–control study of 315 cases","year":2020,"lang":"en","type":"article","venue":"British Journal of Sports Medicine","topic":"Dental Trauma and Treatments","field":"Health Professions","cited_by":37,"is_retracted":false,"has_abstract":true,"ca_institutions":"Alberta Health Services; Libin Cardiovascular Institute of Alberta; Alberta Children's Hospital; University of Calgary","funders":"International Olympic Committee; Canadian Institutes of Health Research; Alberta Innovates - Health Solutions","keywords":"Concussion; Mouthguard; Ice hockey; Medicine; Physical therapy; Poison control; Odds ratio; Injury prevention; Cohort; Cohort study; Logistic regression; Physical medicine and rehabilitation; Internal medicine; Medical emergency","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001178535,0.0001291668,0.0008802084,0.00009014798,0.0001505998,0.000004619092,0.00009732581,0.0000697626,0.0001359798],"category_scores_gemma":[0.001002138,0.00007954094,0.00006509396,0.0002315143,0.0002090221,0.0001210696,0.00003744042,0.000557323,5.573439e-7],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00002442147,"about_ca_system_score_gemma":0.00008251412,"about_ca_topic_candidate":true,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01174478,"about_ca_topic_score_gemma":0.001019287,"domain_scores_codex":[0.9972351,0.0005890543,0.001377909,0.0001396687,0.0004766572,0.0001816784],"domain_scores_gemma":[0.9972621,0.0008197005,0.001337862,0.0001199315,0.0002492721,0.0002111148],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00175477,0.0002959654,0.9044658,0.0000809866,0.0002037456,0.04466488,0.02765143,0.000009478874,0.000003460631,0.000004324187,0.0002749557,0.0205902],"study_design_scores_gemma":[0.03268988,0.0007620571,0.8417316,0.002994018,0.0008142362,0.005069132,0.1158297,0.00001457658,0.000001966082,0.00002088892,0.00001518563,0.00005674178],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9935847,0.004657387,0.000004896136,0.0004025189,0.0002770736,0.000832558,0.000127125,0.000005594406,0.0001081453],"genre_scores_gemma":[0.997936,0.001477642,0.00001516225,0.0003055618,0.0001900739,0.000004187822,0.000003086822,0.0000146048,0.00005368056],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.08817825,"threshold_uncertainty_score":0.9948361,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.06591317344136412,"score_gpt":0.3525534382869162,"score_spread":0.2866402648455521,"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."}}