{"id":"W2538351824","doi":"10.1016/j.drugalcdep.2016.10.017","title":"Initiation into prescription opioid injection and associated trends in heroin use among people who use illicit drugs","year":2016,"lang":"en","type":"article","venue":"Drug and Alcohol Dependence","topic":"HIV, Drug Use, Sexual Risk","field":"Medicine","cited_by":18,"is_retracted":false,"has_abstract":false,"ca_institutions":"Simon Fraser University; St. Paul's Hospital; University of British Columbia","funders":"National Institute on Drug Abuse; Canadian Institutes of Health Research; Centers for Disease Control and Prevention","keywords":"Heroin; Medicine; Harm reduction; Confidence interval; Medical prescription; Hazard ratio; McNemar's test; Opioid; Incidence (geometry); Drug injection; Demography; Internal medicine; Psychiatry; Pharmacology; Drug; Public health","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0004695454,0.0002331875,0.0003609282,0.0004203775,0.0001230384,0.0001231956,0.00006932826,0.0001859649,0.00003544992],"category_scores_gemma":[0.0005706542,0.0001865563,0.00004047457,0.0004895415,0.00009716972,0.001678274,0.00007923946,0.0002550102,0.00001188042],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002058151,"about_ca_system_score_gemma":0.00003643012,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.005645924,"about_ca_topic_score_gemma":0.008378015,"domain_scores_codex":[0.998191,0.0001845253,0.0003832485,0.0005237461,0.0003930109,0.0003244811],"domain_scores_gemma":[0.9989842,0.0002758504,0.0001677519,0.0002542512,0.0001281109,0.0001898026],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.000113,0.0001114973,0.9225316,0.00003751589,0.00002720929,0.0000185012,0.02347696,0.000007094922,0.007151852,0.00005294578,0.0004930393,0.04597878],"study_design_scores_gemma":[0.002251025,0.0001357957,0.9906487,0.0004851159,0.00006064524,0.00001808577,0.003024238,0.001270314,0.001546881,0.0001724995,0.0001527289,0.0002339757],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9985691,0.0001074323,0.0001359837,0.0003614367,0.0001272062,0.0002964484,0.00002863696,0.0001071759,0.0002666152],"genre_scores_gemma":[0.9943278,0.0005212876,0.0001059406,0.0001483715,0.0000694942,0.00003798209,0.00007871698,0.00003261643,0.004677779],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.0681171,"threshold_uncertainty_score":0.8534986,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03437213396883585,"score_gpt":0.3048968389751729,"score_spread":0.2705247050063371,"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."}}