{"id":"W3126756663","doi":"10.1186/s13011-021-00352-3","title":"Changes in cannabis use, exposure, and health perceptions following legalization of adult recreational cannabis use in California: a prospective observational study","year":2021,"lang":"en","type":"article","venue":"Substance Abuse Treatment Prevention and Policy","topic":"Cannabis and Cannabinoid Research","field":"Medicine","cited_by":58,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of British Columbia","funders":"National Heart, Lung, and Blood Institute; School of Medicine, Stanford University","keywords":"Cannabis; Legalization; Health psychology; Observational study; Recreational use; Public health; Recreation; Medicine; Environmental health; Environmental epidemiology; Psychology; Psychiatry; Political science","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"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":[0.0009102993,0.0002153265,0.0002893202,0.0006319826,0.0008495164,0.0008192756,0.0006291419,0.0004233592,0.001542063],"category_scores_gemma":[0.002088111,0.0004817636,0.0004325508,0.001089718,0.0003474435,0.0004469538,0.0005429053,0.0009633087,0.0002929606],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0008308205,"about_ca_system_score_gemma":0.001098006,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.1562124,"about_ca_topic_score_gemma":0.2197105,"domain_scores_codex":[0.9993838,0.000114482,0.00006517891,0.0001957816,0.0001544371,0.00008637273],"domain_scores_gemma":[0.9972432,0.0002834818,0.001213409,0.0002126882,0.0005542604,0.0004929854],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00005317085,0.0001148658,0.9987131,0.00001430643,0.00004202989,0.00002324952,0.0001694716,0.00001526482,0.00004496652,0.000005021937,0.0002768541,0.0005277722],"study_design_scores_gemma":[0.00000438495,0.00004638221,0.9995303,0.00000760534,0.00001359622,0.00002628547,0.0001970324,0.00002731417,0.00001121151,0.000002490595,0.000131323,0.000002023893],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9975498,0.0001314229,0.00004949346,0.00004941941,0.000005335383,0.00004214596,0.001688362,0.000005591678,0.0004784388],"genre_scores_gemma":[0.9969013,0.0002372213,0.0001681893,0.00006684227,0.00001180306,0.00004749397,0.00223705,0.000002938573,0.0003273123],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.1562124,"threshold_uncertainty_score":0.3106063,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.08295992638000843,"score_gpt":0.3824851683469531,"score_spread":0.2995252419669446,"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."}}