{"id":"W2897168593","doi":"10.1016/j.ypmed.2018.10.002","title":"Trends in cannabis use over time among Canadian youth: 2004–2014","year":2018,"lang":"en","type":"article","venue":"Preventive Medicine","topic":"Cannabis and Cannabinoid Research","field":"Medicine","cited_by":26,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of Prince Edward Island; Thompson Rivers University; Impact; University of Waterloo","funders":"Canadian Cancer Society Research Institute; Canadian Institutes of Health Research; Canadian Cancer Society; Public Health Agency of Canada","keywords":"Cannabis; Medicine; Demography; Legalization; Substance use; Environmental health; 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":[0.0007947039,0.0005778183,0.0005887948,0.005850133,0.002881249,0.002047826,0.002058305,0.00104973,0.004667738],"category_scores_gemma":[0.002481771,0.0005663964,0.001909883,0.009487832,0.0006191033,0.00104162,0.001119025,0.001661176,0.0006077769],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.04400396,"about_ca_system_score_gemma":0.05705151,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.9980121,"about_ca_topic_score_gemma":0.9989496,"domain_scores_codex":[0.9985486,0.00003873611,0.0001080701,0.0001705683,0.0005780786,0.0005560073],"domain_scores_gemma":[0.9965792,0.00007769927,0.0005250188,0.00004351689,0.002186206,0.0005883516],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0002448902,0.00006001978,0.9702657,0.0003047975,0.0002229604,0.0001224647,0.001022819,0.0002232101,0.0002262979,0.0002811747,0.01338765,0.01363807],"study_design_scores_gemma":[0.000007142922,0.00001874776,0.990599,0.0001521488,0.00008165106,0.00009508306,0.001691105,0.0002043042,0.0001136887,0.00001985968,0.006991316,0.00002589109],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.8149434,0.01266461,0.0003716226,0.003574635,0.0002320831,0.000152292,0.1528305,0.0002087817,0.01502199],"genre_scores_gemma":[0.9456064,0.008887746,0.0009206285,0.0008577123,0.00006044099,0.00009995215,0.03373035,0.00004251508,0.009794218],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.04400396,"threshold_uncertainty_score":0.3192726,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02142408903611475,"score_gpt":0.3069158702993368,"score_spread":0.285491781263222,"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."}}