{"id":"W4283067890","doi":"10.1001/jamanetworkopen.2022.17648","title":"Changes in Youth Cannabis Use After an Increase in Cannabis Minimum Legal Age in Quebec, Canada","year":2022,"lang":"en","type":"article","venue":"JAMA Network Open","topic":"Cannabis and Cannabinoid Research","field":"Medicine","cited_by":19,"is_retracted":false,"has_abstract":true,"ca_institutions":"Memorial University of Newfoundland","funders":"Canadian Institutes of Health Research; Canada Research Chairs","keywords":"Cannabis; Demography; Confounding; Medicine; Young adult; Geography; Psychology; Psychiatry; Gerontology; Sociology","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":[0.0009267419,0.0002629684,0.0003795922,0.0009334966,0.00224515,0.001252667,0.001438159,0.0005763334,0.00384632],"category_scores_gemma":[0.002745673,0.0002217576,0.0008736082,0.001940358,0.0006532597,0.0005243549,0.0007054718,0.0009785304,0.0002675468],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.06073354,"about_ca_system_score_gemma":0.04648386,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.9981566,"about_ca_topic_score_gemma":0.9988388,"domain_scores_codex":[0.998942,0.0001228087,0.00004782811,0.0001382715,0.0003191328,0.0004299104],"domain_scores_gemma":[0.9964421,0.000176877,0.0006696616,0.00006868938,0.001802189,0.0008403347],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001656376,0.0001008037,0.9783065,0.0001125677,0.0001349907,0.00009266058,0.0008409702,0.0003182786,0.0003170293,0.000234432,0.006560995,0.01281526],"study_design_scores_gemma":[0.000009253084,0.00001863806,0.9976926,0.00004860399,0.00002383673,0.00001540388,0.0006451408,0.0002229938,0.00007342035,0.00001386649,0.001227766,0.000008554391],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9696032,0.002932255,0.0003939248,0.003881172,0.00008605663,0.0001392791,0.01673872,0.00007707434,0.006148252],"genre_scores_gemma":[0.9930189,0.000736444,0.0002996893,0.0006732774,0.00001386999,0.00006418164,0.002782665,0.00000990524,0.002401068],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.06073354,"threshold_uncertainty_score":0.4406548,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02092513777403275,"score_gpt":0.2749953785853295,"score_spread":0.2540702408112968,"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."}}