{"id":"W4402275999","doi":"10.1186/s12889-024-19803-0","title":"Tobacco use and khat chewing among adolescents in Yemen: a large-scale school-based cross-sectional study","year":2024,"lang":"en","type":"article","venue":"BMC Public Health","topic":"Forensic Toxicology and Drug Analysis","field":"Pharmacology, Toxicology and Pharmaceutics","cited_by":9,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Ottawa","funders":"Qatar National Library","keywords":"Khat; Biostatistics; Medicine; Cross-sectional study; Public health; Environmental health; Epidemiology; Scale (ratio); Traditional medicine; Psychiatry; Nursing; Geography","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"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":[0.0004620201,0.0003593644,0.0003055901,0.0005831312,0.0005819114,0.0005375094,0.0002439184,0.0004468096,0.001460755],"category_scores_gemma":[0.0004669124,0.0003940004,0.0002939975,0.000739702,0.0002472826,0.0004826547,0.0003437977,0.0004100294,0.0002820056],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003780291,"about_ca_system_score_gemma":0.0004563383,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.009285964,"about_ca_topic_score_gemma":0.0228435,"domain_scores_codex":[0.9998055,0.00004689122,0.00002503824,0.00003681321,0.00003180404,0.00005389889],"domain_scores_gemma":[0.9997273,0.00003347612,0.0001102079,0.00001456679,0.0000518702,0.00006257743],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00001870622,0.00005755419,0.9987091,0.00001412002,0.00001708449,0.00007174405,0.0002958066,0.000006251438,0.0002002857,0.000004757213,0.00004300599,0.0005616158],"study_design_scores_gemma":[0.000003255595,0.0001181952,0.9982374,0.00001253729,0.00001825017,0.0001031058,0.001223979,0.00002881329,0.00005952884,0.000002409654,0.0001905766,0.000001919248],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.999369,0.0001144895,0.00002590375,0.00002247438,0.000002370267,0.00002029021,0.0002293233,0.000001512214,0.0002146969],"genre_scores_gemma":[0.9992688,0.0001525805,0.00007372348,0.00003500361,0.000004431283,0.00002775393,0.000249292,8.674455e-7,0.000187503],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.009285964,"threshold_uncertainty_score":0.01846379,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.1323823307546384,"score_gpt":0.4489614896753849,"score_spread":0.3165791589207465,"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."}}