{"id":"W2914323304","doi":"10.1136/tobaccocontrol-2018-054654","title":"Awareness and interest in IQOS heated tobacco products among youth in Canada, England and the USA","year":2019,"lang":"en","type":"article","venue":"Tobacco Control","topic":"Smoking Behavior and Cessation","field":"Medicine","cited_by":108,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Waterloo; Heart and Stroke Foundation; University of Ottawa","funders":"National Cancer Institute; National Institutes of Health","keywords":"Tobacco product; Logistic regression; Tobacco control; Environmental health; Medicine; Demography; Public health; Sociology","routes":{"ca_aff":true,"ca_fund":false,"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":[0.0003570937,0.0001261332,0.0003291225,0.00008038728,0.00002890972,0.00002924526,0.00005811925,0.00005781983,0.00002990873],"category_scores_gemma":[0.0001102754,0.00008494595,0.00001309573,0.0001570935,0.00005957855,0.00008706946,0.00002336534,0.0002130403,0.000001008422],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001497717,"about_ca_system_score_gemma":0.0002851044,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.779027,"about_ca_topic_score_gemma":0.9401814,"domain_scores_codex":[0.9991031,0.00008839355,0.0002263155,0.0002487449,0.00013022,0.0002032052],"domain_scores_gemma":[0.9995129,0.0001027188,0.00005544802,0.000221571,0.00005222483,0.00005513223],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00047565,0.00002051827,0.9958112,0.00001810742,0.00001073038,0.00001635781,0.000833264,0.000006975897,0.0001573398,0.0000268988,0.000009417393,0.002613563],"study_design_scores_gemma":[0.01388377,0.00003999229,0.9846463,0.0001206556,0.0000625002,0.000007600354,0.0008233824,0.00008410279,0.0001950483,0.00000608195,0.00003342291,0.0000971082],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9978966,0.0001424802,0.00000128095,0.0007503206,0.0001802155,0.0008988074,0.00001133245,0.000009570518,0.0001094462],"genre_scores_gemma":[0.999539,0.00001674129,0.00000116585,0.000257084,0.00005715659,0.00003186508,0.00001541694,0.00001127014,0.00007028034],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.1611544,"threshold_uncertainty_score":0.3463995,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02369382418179961,"score_gpt":0.2402745743606277,"score_spread":0.2165807501788281,"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."}}