{"id":"W3120567349","doi":"10.1016/j.drugalcdep.2020.108505","title":"Prevalence and modes of cannabis use among youth in Canada, England, and the US, 2017 to 2019","year":2021,"lang":"en","type":"article","venue":"Drug and Alcohol Dependence","topic":"Cannabis and Cannabinoid Research","field":"Medicine","cited_by":108,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of Waterloo","funders":"National Cancer Institute; Canadian Institutes of Health Research; National Institutes of Health","keywords":"Cannabis; Demography; Consumption (sociology); Environmental health; Medicine; Geography; Psychiatry; 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":[],"consensus_categories":[],"category_scores_codex":[0.0004014032,0.0001201051,0.0002721583,0.00005820464,0.00007203851,0.00005140137,0.00008428441,0.00003644266,0.00001473213],"category_scores_gemma":[0.0002214516,0.00008295152,0.00002235324,0.0001486182,0.0002147786,0.0001109695,0.0001647274,0.0002106066,3.462964e-7],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00004788813,"about_ca_system_score_gemma":0.0006446594,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.8365272,"about_ca_topic_score_gemma":0.853161,"domain_scores_codex":[0.9987743,0.00009389791,0.0001976473,0.0003246067,0.0003561274,0.0002534376],"domain_scores_gemma":[0.9992791,0.00004254371,0.0000427526,0.0002696326,0.0001413562,0.0002246243],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0002468678,0.00002109195,0.9888397,0.0002597125,0.00002065141,0.0001352222,0.003123103,0.0000343192,0.0007552599,0.00008120883,0.004184368,0.002298438],"study_design_scores_gemma":[0.002177798,0.00002959952,0.9915279,0.0002416192,0.00005060813,0.00007188628,0.001629782,0.0007303155,0.002814846,0.00002145901,0.0005826845,0.0001215264],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9920135,0.00350405,0.000002661289,0.00384408,0.00003314258,0.0003429531,0.0001128929,0.000003518517,0.0001431953],"genre_scores_gemma":[0.9895838,0.002139673,0.0000219738,0.0002905303,0.00002407101,0.00002158159,0.000005028471,0.00000854294,0.007904801],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01663382,"threshold_uncertainty_score":0.3382665,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01742298325910142,"score_gpt":0.2605983743297267,"score_spread":0.2431753910706252,"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."}}