{"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":"codex-gemma-dda1882f352a","candidate_categories":["metaepi_narrow","insufficient_payload"],"consensus_categories":[],"category_scores_codex":[0.0017327,0.0003419625,0.0007432221,0.0004507592,0.0001337514,0.0003563472,0.000766242,0.0001415647,0.001185165],"category_scores_gemma":[0.000188486,0.0003495358,0.000062334,0.001796076,0.00008593049,0.0005371489,0.001229687,0.001302123,0.000002413444],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.002858638,"about_ca_system_score_gemma":0.004302177,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.9981653,"about_ca_topic_score_gemma":0.9999186,"domain_scores_codex":[0.9956269,0.0008361373,0.000598441,0.0007898955,0.0008595239,0.001289153],"domain_scores_gemma":[0.9984565,0.00002074811,0.0001077385,0.0007761967,0.00008887501,0.0005499319],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"not_applicable","study_design_gemma":"observational","study_design_scores_codex":[0.005411888,0.0005203558,0.4347211,0.00006751798,0.00002939625,0.0161173,0.00547928,0.001863462,0.0000416665,0.00004217937,0.5307499,0.004955974],"study_design_scores_gemma":[0.003344828,0.0002428179,0.6748946,0.0001509713,0.00001512813,0.00002802506,0.00367356,0.000475431,0.00001427731,0.00001039594,0.3167979,0.0003520986],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9400968,0.0004145051,1.696702e-7,0.05594432,0.000267689,0.001906549,0.000221815,0.00001593147,0.001132244],"genre_scores_gemma":[0.9157889,0.00003590429,0.00002377514,0.007194771,0.0003814959,0.001718196,0.0004172677,0.00007409607,0.07436552],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.2401734,"threshold_uncertainty_score":0.9998957,"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."}}