{"id":"W4386143314","doi":"10.1016/j.amepre.2023.08.016","title":"Fentanyl Concentration in Drug Checking Samples and Risk of Overdose Death in Vancouver, Canada","year":2023,"lang":"en","type":"article","venue":"American Journal of Preventive Medicine","topic":"Opioid Use Disorder Treatment","field":"Medicine","cited_by":32,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of Victoria; University of British Columbia, Okanagan Campus; Vancouver Coastal Health; University of British Columbia; BC Centre for Disease Control; British Columbia Centre on Substance Use","funders":"Canadian Institutes of Health Research; Canada Research Chairs; Michael Smith Health Research BC","keywords":"Fentanyl; Medicine; Population; Emergency medicine; Drug; Toxicity; Drug overdose; Poison control; Anesthesia; Pharmacology; Environmental health; 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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0004720993,0.0003324312,0.0004310405,0.001648751,0.003925694,0.001915274,0.001498301,0.0008576212,0.003093151],"category_scores_gemma":[0.003407597,0.0005718485,0.0004597137,0.002822472,0.0007450046,0.0003309147,0.0007422942,0.001285868,0.0003050722],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.02834068,"about_ca_system_score_gemma":0.02474569,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.9963301,"about_ca_topic_score_gemma":0.9980617,"domain_scores_codex":[0.9991217,0.00009858338,0.00006793718,0.0001078455,0.0003235623,0.0002803696],"domain_scores_gemma":[0.996362,0.0002766672,0.0003981891,0.0000578876,0.002051217,0.0008540491],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001105147,0.00005651196,0.9927917,0.00002653076,0.00004035944,0.0001676147,0.0007431876,0.0001242402,0.0001652444,0.00008544386,0.001192523,0.004496118],"study_design_scores_gemma":[0.0000138869,0.00004062205,0.9948434,0.00006267274,0.00003170178,0.0001660716,0.003154057,0.0005448217,0.0001231617,0.00004132177,0.0009604901,0.00001782173],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9923227,0.0009361202,0.0001238535,0.0005392878,0.00002864623,0.00005243759,0.001725953,0.00001498216,0.004256053],"genre_scores_gemma":[0.9958507,0.0006674541,0.0001921556,0.0001848538,0.000008082487,0.00001084552,0.0005185297,0.000009965035,0.00255733],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.02834068,"threshold_uncertainty_score":0.205627,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01185295726710303,"score_gpt":0.2758696950964923,"score_spread":0.2640167378293893,"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."}}