{"id":"W2901556809","doi":"10.1080/08897077.2018.1528493","title":"3,4-Methylenedioxymethamphetamine (Mdma; Ecstasy) Use and Transitions to Injection Drug Use among Street-Involved Youth","year":2018,"lang":"en","type":"article","venue":"Substance Abuse","topic":"HIV, Drug Use, Sexual Risk","field":"Medicine","cited_by":6,"is_retracted":false,"has_abstract":true,"ca_institutions":"Simon Fraser University; British Columbia Centre on Substance Use; University of British Columbia","funders":"National Institute on Drug Abuse; Canadian Institutes of Health Research; National Institutes of Health","keywords":"MDMA; Ecstasy; Medicine; Hazard ratio; Confidence interval; Poison control; Young adult; Cannabis; Demography; Confounding; Incidence (geometry); Multivariate analysis; Psychiatry; Environmental health; Internal medicine","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":[0.000624289,0.0001967011,0.0002969497,0.0009752194,0.0005983328,0.001059477,0.0005151274,0.0004447565,0.002039117],"category_scores_gemma":[0.002892361,0.00035899,0.0007432038,0.001190416,0.000410038,0.0004634146,0.0007367989,0.0007851551,0.0002088268],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001173859,"about_ca_system_score_gemma":0.001287866,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.1444434,"about_ca_topic_score_gemma":0.2026247,"domain_scores_codex":[0.9994753,0.0001076307,0.00003780884,0.00008182301,0.0001020271,0.00019555],"domain_scores_gemma":[0.9976162,0.0003013427,0.001163736,0.00007525311,0.0002749199,0.0005685684],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00002518698,0.00001852584,0.9992939,0.000005470486,0.00001414632,0.00002570597,0.0000698068,0.0000149048,0.00001846354,0.000009423207,0.00002982573,0.0004746699],"study_design_scores_gemma":[0.000001436852,0.0000263169,0.9994627,0.00001368982,0.00001399868,0.00007416346,0.0002248514,0.00009649881,0.00001558556,0.000010969,0.00005852362,0.000001416957],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9989007,0.0004551434,0.00003540975,0.00004310557,0.000003280789,0.000008334446,0.0002858866,0.000002442418,0.0002656717],"genre_scores_gemma":[0.9992787,0.0003092689,0.00005030298,0.00001261925,0.000005071769,0.000004259798,0.0001919633,0.000001544043,0.0001461384],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.1444434,"threshold_uncertainty_score":0.2872053,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.05151738985718564,"score_gpt":0.2977344392185086,"score_spread":0.246217049361323,"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."}}