{"id":"W1988551945","doi":"10.1136/bmj.g3284","title":"Relation between surgeon volume and risk of complications after total hip arthroplasty: propensity score matched cohort study","year":2014,"lang":"en","type":"article","venue":"BMJ","topic":"Total Knee Arthroplasty Outcomes","field":"Medicine","cited_by":267,"is_retracted":false,"has_abstract":true,"ca_institutions":"Institute for Clinical Evaluative Sciences; Women's College Hospital; University of Toronto","funders":"Canadian Institutes of Health Research","keywords":"Medicine; Periprosthetic; Surgery; Cohort; Arthroplasty; Propensity score matching; Total hip arthroplasty; Retrospective cohort study; Harris Hip Score; Cohort study; Internal medicine","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0006446295,0.0001497951,0.0004868648,0.00008648719,0.00008513538,0.00001418416,0.00003273759,0.0000746459,0.00006564714],"category_scores_gemma":[0.0003430581,0.0001286356,0.00006477798,0.0001362514,0.0001382508,0.0001071125,0.00008573636,0.0001736096,0.0001113872],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00002924904,"about_ca_system_score_gemma":0.00003645034,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0003208089,"about_ca_topic_score_gemma":0.0001878436,"domain_scores_codex":[0.9986115,0.0001608812,0.0004433456,0.0003049003,0.0003070734,0.0001723323],"domain_scores_gemma":[0.9988703,0.0001539164,0.0002272243,0.0004875693,0.0001377119,0.0001233126],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001038968,0.0001584616,0.9966127,0.0000409191,0.000165126,0.000003699648,0.0003106505,0.000007141995,0.00006667036,0.00001168616,0.0006335369,0.00188552],"study_design_scores_gemma":[0.001359603,0.0003925987,0.997004,0.00006009094,0.0003594916,0.00003080961,0.00008416002,0.0001800535,0.0000357161,0.00003172872,0.0003321872,0.0001296089],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9961089,0.00002200541,0.0003955932,0.0007383912,0.0001247686,0.002037066,0.00002260087,0.00006847409,0.000482135],"genre_scores_gemma":[0.9983546,0.000005199863,0.0004548444,0.00002783662,0.00013286,0.00008040734,0.00003337278,0.00002329768,0.0008876231],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.002245593,"threshold_uncertainty_score":0.5245609,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02650773784780648,"score_gpt":0.2707488707477655,"score_spread":0.244241132899959,"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."}}