{"id":"W2765802649","doi":"10.1503/cmaj.161002","title":"Electronic cigarette use and smoking initiation among youth: a longitudinal cohort study","year":2017,"lang":"en","type":"article","venue":"Canadian Medical Association Journal","topic":"Smoking Behavior and Cessation","field":"Medicine","cited_by":180,"is_retracted":false,"has_abstract":true,"ca_institutions":"Regional Municipality of Waterloo; University of Waterloo","funders":"","keywords":"Medicine; Confidence interval; Odds ratio; Longitudinal study; Demography; Cohort; Cigarette smoking; Cohort study; Odds; Smoking cessation; Longitudinal sample; Internal medicine; Logistic regression; Psychology; Pathology","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":true,"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":[0.002439526,0.0001242943,0.0002429292,0.0001879405,0.0009747118,0.0005550636,0.0001328347,0.0003053908,0.0005719386],"category_scores_gemma":[0.003286346,0.0001185067,0.00006172427,0.00007433701,0.00005719747,0.0005283576,0.00001958685,0.001164382,0.000002396648],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001396288,"about_ca_system_score_gemma":0.001311866,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.008133734,"about_ca_topic_score_gemma":0.04872573,"domain_scores_codex":[0.9974349,0.0001170774,0.0003375919,0.000211719,0.00144823,0.0004505357],"domain_scores_gemma":[0.9979573,0.00006868314,0.0003914429,0.000210173,0.0004179221,0.0009544007],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.000008741277,0.00003720852,0.9954851,0.000002112289,0.000151875,0.000267798,0.0005609606,2.079445e-7,8.687084e-7,0.00002441429,0.000780658,0.002680045],"study_design_scores_gemma":[0.001511879,0.0001300269,0.9962909,0.00008336339,0.0003950358,0.0001908925,0.0006190113,0.00003357853,0.000003691052,0.00003020484,0.000595993,0.0001153718],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9962638,0.00001961634,0.00002351039,0.002479968,0.0004917177,0.000266006,0.00001139959,0.00001837064,0.0004256057],"genre_scores_gemma":[0.9982073,0.00005224097,0.000002537174,0.000755497,0.0008078272,0.000009140259,0.00002556383,0.00001731238,0.0001225671],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.040592,"threshold_uncertainty_score":0.9984712,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03047318716996477,"score_gpt":0.2862690646624901,"score_spread":0.2557958774925253,"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."}}