{"id":"W2611744729","doi":"10.2196/mhealth.6940","title":"Ownership and Use of Commercial Physical Activity Trackers Among Finnish Adolescents: Cross-Sectional Study","year":2017,"lang":"en","type":"article","venue":"JMIR mhealth and uhealth","topic":"Physical Activity and Health","field":"Medicine","cited_by":32,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Cross-sectional study; Activity tracker; Physical activity; Environmental health; Psychology; Medicine; Physical therapy","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":true,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.000842308,0.0003148919,0.0004545743,0.001185609,0.0006579104,0.001024564,0.0004661464,0.0005703499,0.001500109],"category_scores_gemma":[0.001555078,0.0005202256,0.0007411226,0.001291016,0.0003307384,0.0006797283,0.0005634965,0.0004906778,0.0003701164],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0005192428,"about_ca_system_score_gemma":0.0004288005,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01871631,"about_ca_topic_score_gemma":0.019368,"domain_scores_codex":[0.9994467,0.00007082596,0.0001028399,0.0001349535,0.000157679,0.00008708237],"domain_scores_gemma":[0.9988978,0.0001935943,0.0004858246,0.0000658525,0.0001695553,0.0001873551],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0000159978,0.00003742872,0.9989393,0.00001517753,0.00002793802,0.00005749602,0.0003028032,0.000006086987,0.00006944517,0.000006073981,0.00003999994,0.0004821784],"study_design_scores_gemma":[0.000002334344,0.00006781198,0.9987196,0.00001358746,0.00003901765,0.0001465612,0.000811038,0.00003626043,0.00002438883,0.000004573,0.000132163,0.000002831263],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9989806,0.0002295696,0.00003806168,0.00001065618,0.000003276208,0.00001681885,0.0003635406,0.000001452338,0.0003559261],"genre_scores_gemma":[0.9989243,0.0002579011,0.00009155372,0.00002941908,0.000005372732,0.00003172079,0.0004918293,0.000001597243,0.0001662651],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01871631,"threshold_uncertainty_score":0.03721476,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.198241087718999,"score_gpt":0.4617742515852858,"score_spread":0.2635331638662868,"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."}}