{"id":"W4412411499","doi":"10.1111/add.70146","title":"Cannabis use patterns and comparison trends in Canada","year":2025,"lang":"en","type":"letter","venue":"Addiction","topic":"HIV, Drug Use, Sexual Risk","field":"Medicine","cited_by":1,"is_retracted":false,"has_abstract":true,"ca_institutions":"Université de Montréal; Centre Hospitalier de l’Université de Montréal; University of Ottawa; Waypoint Centre for Mental Health Care; Ottawa Hospital; Simon Fraser University; University of Toronto; Bruyère; Centre for Addiction and Mental Health; University of the Fraser Valley","funders":"University of Toronto; Indivior; Department of Psychiatry, University of Toronto; University of Ottawa","keywords":"Cannabis; Environmental health; Medicine; Psychology; Psychiatry","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":[0.0007678058,0.0003341473,0.0003936595,0.005885494,0.003303848,0.001808156,0.001441867,0.000446476,0.003951278],"category_scores_gemma":[0.00294419,0.0002503099,0.0009202969,0.01387333,0.0006463293,0.0007719164,0.001290767,0.001013829,0.0004410374],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.04676144,"about_ca_system_score_gemma":0.0618474,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.996188,"about_ca_topic_score_gemma":0.9977037,"domain_scores_codex":[0.9987304,0.00005523608,0.00009749249,0.0001947264,0.00052521,0.0003970237],"domain_scores_gemma":[0.996129,0.0001131359,0.0003422334,0.0000658443,0.002784564,0.0005651878],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0002527082,0.00007112791,0.9277308,0.0003818062,0.0002712805,0.0002967362,0.003093017,0.000368406,0.0004413096,0.001976342,0.0192314,0.04588504],"study_design_scores_gemma":[0.000009506591,0.00003811852,0.9736199,0.0002440191,0.00009564249,0.0002142606,0.004357097,0.0004704621,0.0002205738,0.0001572468,0.02051729,0.00005591545],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.8360038,0.01685338,0.0007396781,0.006047787,0.0002627728,0.000228565,0.1106745,0.0001803608,0.0290091],"genre_scores_gemma":[0.9595679,0.01047514,0.001026992,0.001050037,0.00005269307,0.00008298168,0.02299868,0.0000640393,0.004681466],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.04676144,"threshold_uncertainty_score":0.3392796,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03650563946940927,"score_gpt":0.3100101530747255,"score_spread":0.2735045136053162,"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."}}