{"id":"W3196544992","doi":"10.1177/07067437211042132","title":"Perceived Impact of COVID on Smoking, Vaping, Alcohol and Cannabis Use Among Youth and Youth Adults in Canada","year":2021,"lang":"en","type":"article","venue":"The Canadian Journal of Psychiatry","topic":"COVID-19 and Mental Health","field":"Psychology","cited_by":35,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of Toronto; Centre for Addiction and Mental Health","funders":"Institute of Population and Public Health; Canadian Institutes of Health Research","keywords":"Cannabis; Coronavirus disease 2019 (COVID-19); 2019-20 coronavirus outbreak; Psychiatry; Young adult; Psychology; Marijuana smoking; Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2); Medicine; Environmental health; Clinical psychology; Substance use; Developmental psychology; Polysubstance dependence; Outbreak; Virology","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":true,"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":[0.0007874063,0.0001941546,0.0004767551,0.001259194,0.004678419,0.002323937,0.0009273434,0.0006216653,0.003048714],"category_scores_gemma":[0.002449937,0.0003758223,0.0008952747,0.002372552,0.0009792364,0.0005747119,0.001582909,0.001884694,0.0002307733],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.02663073,"about_ca_system_score_gemma":0.03461618,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.9939791,"about_ca_topic_score_gemma":0.9978734,"domain_scores_codex":[0.9986884,0.0001121565,0.000094587,0.0000869205,0.0004858649,0.0005321247],"domain_scores_gemma":[0.9964205,0.0001621271,0.0004775739,0.00003566602,0.001234277,0.001669844],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00003481389,0.0000852891,0.9917338,0.00003021814,0.00004100467,0.00007583998,0.003517997,0.00003925366,0.00006953404,0.0001752544,0.001098142,0.003098915],"study_design_scores_gemma":[0.000004807533,0.00002566754,0.9868414,0.00006080205,0.00002664795,0.00003543519,0.01169253,0.00009183287,0.00003261592,0.00002228901,0.001154127,0.00001166845],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9929689,0.0006584981,0.00002585402,0.001157728,0.00002763181,0.00002915906,0.001287821,0.000004304642,0.00384018],"genre_scores_gemma":[0.9973841,0.0005620152,0.00007844168,0.0002860968,0.000007380416,0.00001198693,0.0004711764,0.000002804778,0.001195901],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.02663073,"threshold_uncertainty_score":0.1932204,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.04033380507253904,"score_gpt":0.3234069036847274,"score_spread":0.2830730986121883,"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."}}