{"id":"W3156169080","doi":"10.1016/j.drugpo.2021.103237","title":"Changes in substance supply and use characteristics among people who use drugs (PWUD) during the COVID-19 global pandemic: A national qualitative assessment in Canada","year":2021,"lang":"en","type":"article","venue":"International Journal of Drug Policy","topic":"Opioid Use Disorder Treatment","field":"Medicine","cited_by":167,"is_retracted":false,"has_abstract":true,"ca_institutions":"Centre for Addiction and Mental Health; Bruyère; University of Toronto; Canada Research Chairs; Lakehead University; Western University","funders":"Canadian Institutes of Health Research","keywords":"Pandemic; Coronavirus disease 2019 (COVID-19); Substance use; 2019-20 coronavirus outbreak; Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2); Qualitative research; Substance abuse; Environmental health; Medicine; Criminology; Psychology; Psychiatry; Sociology; Virology; Social science; Infectious disease (medical specialty); Disease","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":[0.004211087,0.0003307507,0.0005634524,0.002129196,0.01173642,0.002870446,0.001875694,0.0008062841,0.001630173],"category_scores_gemma":[0.00734703,0.0004986891,0.0006451292,0.003548538,0.004211664,0.001288491,0.004498783,0.001666868,0.0001125265],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.06189573,"about_ca_system_score_gemma":0.07583722,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.9654921,"about_ca_topic_score_gemma":0.9840456,"domain_scores_codex":[0.9976215,0.0007090185,0.0001265434,0.0002015496,0.0005775439,0.0007639307],"domain_scores_gemma":[0.9940764,0.001600642,0.0005498363,0.0001340876,0.002142152,0.001496868],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"qualitative","study_design_gemma":"qualitative","study_design_scores_codex":[0.00005114213,0.0000556892,0.07525099,0.00036103,0.0000170093,0.000662957,0.9105412,0.00009980957,0.0006265256,0.000597571,0.001440728,0.01029531],"study_design_scores_gemma":[0.000004228782,0.00003648417,0.06525183,0.0003221589,0.000009875263,0.0001067183,0.9278806,0.0001589614,0.0001542321,0.0001038982,0.005939675,0.00003125792],"study_design_candidate":"qualitative","study_design_consensus":"qualitative","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9931805,0.0005844982,0.0004777128,0.001589564,0.00002271664,0.0004032676,0.001095932,0.00001060838,0.002635258],"genre_scores_gemma":[0.9939284,0.001274556,0.001066819,0.0007698114,0.000007854821,0.000457636,0.0005102135,0.0000150923,0.001969597],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.06189573,"threshold_uncertainty_score":0.449087,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02755024572168761,"score_gpt":0.3748401852883029,"score_spread":0.3472899395666153,"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."}}