{"id":"W4407067873","doi":"10.1016/j.drugalcdep.2024.111879","title":"Changes in the Use of Non-Prescribed Hydromorphone and Unregulated Opioids Among People who Use Drugs in Vancouver, Canada, 2018-2022","year":2025,"lang":"en","type":"article","venue":"Drug and Alcohol Dependence","topic":"Opioid Use Disorder Treatment","field":"Medicine","cited_by":0,"is_retracted":false,"has_abstract":false,"ca_institutions":"British Columbia Centre on Substance Use; Vancouver Coastal Health; Simon Fraser University","funders":"","keywords":"Hydromorphone; Medicine; Opioid; Anesthesia; Internal medicine","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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0003895519,0.0002499469,0.0004357365,0.00129105,0.002353607,0.00157925,0.001369607,0.0008507886,0.003521726],"category_scores_gemma":[0.00195382,0.0004382657,0.0008654395,0.003611964,0.0006199441,0.000566537,0.0009608833,0.001958217,0.0004943417],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.02332494,"about_ca_system_score_gemma":0.02202214,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.9948252,"about_ca_topic_score_gemma":0.9980236,"domain_scores_codex":[0.9990133,0.00005534221,0.0001001062,0.0001290147,0.0003239743,0.0003782758],"domain_scores_gemma":[0.9972259,0.00009285526,0.000443355,0.00003853604,0.001422976,0.0007763228],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.000143768,0.00006283548,0.9895098,0.00008441773,0.00007782795,0.0001022383,0.001119957,0.00008466688,0.0001173985,0.00006300326,0.002563864,0.006070228],"study_design_scores_gemma":[0.000006034275,0.00001338356,0.9962705,0.00005423502,0.0000180485,0.00005159855,0.002371544,0.00008154393,0.00002825036,0.000008571805,0.001088559,0.000007667495],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9734807,0.001482988,0.00009658487,0.001023144,0.00008498495,0.00008075364,0.01703132,0.00002082286,0.006698704],"genre_scores_gemma":[0.9868341,0.001274496,0.0002277953,0.0004449428,0.00002154842,0.00004513051,0.005043402,0.00001539752,0.006093174],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.02332494,"threshold_uncertainty_score":0.1692351,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01395123094411677,"score_gpt":0.2422125386176816,"score_spread":0.2282613076735648,"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."}}