{"id":"W4379598155","doi":"10.1111/dar.13690","title":"Longitudinal latent polysubstance use patterns among a cohort of people who use opioids in Vancouver, Canada","year":2023,"lang":"en","type":"article","venue":"Drug and Alcohol Review","topic":"Opioid Use Disorder Treatment","field":"Medicine","cited_by":17,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of British Columbia; Public Health Ontario; British Columbia Centre on Substance Use; University of Toronto; St. Michael's Hospital","funders":"Canadian Institutes of Health Research; National Institutes of Health; Michael Smith Health Research BC; National Institute on Drug Abuse; St. Paul's Foundation; Providence Health Care; University of British Columbia","keywords":"Polysubstance dependence; Latent class model; Longitudinal study; Medicine; Cohort; Quartile; Demography; Cannabis; Psychology; Psychiatry; Substance abuse; Internal medicine; Statistics; Mathematics; Confidence interval; Sociology","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":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0001966772,0.0002116886,0.0007903372,0.00008354023,0.00003334214,0.00001398656,0.0000703909,0.00003240932,0.00004285742],"category_scores_gemma":[0.00007481272,0.0001713117,0.0000937454,0.0005213289,0.00002927217,0.0001365296,0.00005537395,0.0001315143,0.000004358352],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001243003,"about_ca_system_score_gemma":0.0002119546,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.4293334,"about_ca_topic_score_gemma":0.701796,"domain_scores_codex":[0.99848,0.00005437572,0.0004662006,0.0003469999,0.0003489579,0.0003034524],"domain_scores_gemma":[0.9991677,0.0001021686,0.0001236571,0.000385081,0.00007060578,0.0001507357],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00001321014,0.00007598997,0.9847233,0.002886537,0.00007983138,0.0001683677,0.0002641326,0.000003784398,0.00000416792,0.00000826106,0.01058112,0.001191239],"study_design_scores_gemma":[0.0008589478,0.00002795005,0.98744,0.008743033,0.0002338024,0.000005547291,0.0001201435,0.00006859799,0.00003515612,0.000002853866,0.002316498,0.0001473997],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9690034,0.02934071,0.000001804415,0.0003583597,0.0001789996,0.0009707864,0.00008816914,0.0000275477,0.00003023003],"genre_scores_gemma":[0.8181237,0.1798875,0.00002001703,0.0002584631,0.00001315832,0.00009184219,0.00008534545,0.00002142979,0.001498551],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.2724626,"threshold_uncertainty_score":0.6985887,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02497848871411848,"score_gpt":0.2756945696176574,"score_spread":0.250716080903539,"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."}}