{"id":"W4224880101","doi":"10.1016/j.drugalcdep.2022.109471","title":"Factors associated with perceived decline in the quality of drugs during the COVID-19 pandemic: Evidence from community-recruited cohorts of people who use drugs in Vancouver, Canada","year":2022,"lang":"en","type":"article","venue":"Drug and Alcohol Dependence","topic":"Opioid Use Disorder Treatment","field":"Medicine","cited_by":17,"is_retracted":false,"has_abstract":false,"ca_institutions":"St. Paul's Hospital; Simon Fraser University; British Columbia Centre on Substance Use","funders":"National Institute on Drug Abuse; National Health and Medical Research Council; National Institutes of Health","keywords":"Medicine; Pandemic; Odds ratio; Demography; Confidence interval; Logistic regression; Odds; Coronavirus disease 2019 (COVID-19); Environmental health; Disease; Internal medicine; Infectious disease (medical specialty)","routes":{"ca_aff":true,"ca_fund":false,"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":[0.001948967,0.0002406987,0.0006760854,0.0001027079,0.0003450677,0.00001805971,0.000452703,0.00004873338,0.00004747814],"category_scores_gemma":[0.00129138,0.0001473752,0.00006198711,0.0006654804,0.0001436638,0.0001444576,0.0002790231,0.0008210206,6.688058e-8],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0006563282,"about_ca_system_score_gemma":0.0008656916,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.9403064,"about_ca_topic_score_gemma":0.959695,"domain_scores_codex":[0.9956926,0.002036763,0.0006152809,0.0003078271,0.001060522,0.0002870568],"domain_scores_gemma":[0.9928354,0.005907508,0.000393585,0.0006571657,0.00009712033,0.0001091979],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.000282894,0.0003070472,0.8788199,0.00008980614,0.00007959583,0.00001388904,0.1194236,0.0004478854,0.0004066668,0.000001807656,0.00009389089,0.00003303435],"study_design_scores_gemma":[0.002371831,0.00006251173,0.8682031,0.000246134,0.0000786924,0.00000267842,0.1285726,0.0001404808,0.0001379367,0.00002691664,0.00002220203,0.000134967],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9975439,0.0004411793,0.000001724793,0.0006406023,0.00006754539,0.0009121621,0.0003617953,0.00001770683,0.00001336664],"genre_scores_gemma":[0.9987766,0.0002286021,0.000007509338,0.0006520324,0.000004738311,0.0001000706,0.0001146854,0.0000168894,0.00009893194],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.0193886,"threshold_uncertainty_score":0.6009787,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.09672732846535066,"score_gpt":0.3349125063688115,"score_spread":0.2381851779034609,"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."}}