{"id":"W4406703918","doi":"10.1016/j.tjfa.2024.100007","title":"Heart rate variability as a digital biomarker for frailty in cardiovascular patients","year":2025,"lang":"en","type":"article","venue":"The Journal of Frailty & Aging","topic":"Non-Invasive Vital Sign Monitoring","field":"Engineering","cited_by":4,"is_retracted":false,"has_abstract":true,"ca_institutions":"Jewish General Hospital","funders":"Canadian Institutes of Health Research","keywords":"Medicine; Biomarker; Internal medicine; Cardiology; Gerontology; Intensive care medicine","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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.00102672,0.0004606819,0.0005120853,0.001128177,0.0001749012,0.0006780938,0.0003001029,0.0004331612,0.001819851],"category_scores_gemma":[0.00395614,0.00008935505,0.0004056061,0.0008639601,0.0001850471,0.0003429814,0.0004186233,0.0007017486,0.0003189529],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001806593,"about_ca_system_score_gemma":0.0002116616,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0005687285,"about_ca_topic_score_gemma":0.0007960818,"domain_scores_codex":[0.9995531,0.0001536713,0.0000699242,0.00007888224,0.0001102472,0.00003409312],"domain_scores_gemma":[0.997807,0.0007462497,0.0009073419,0.00009908107,0.0002499033,0.0001904417],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0003636623,0.00007917473,0.9820219,0.00009257506,0.0001572664,0.00006428119,0.00005345875,0.0002966125,0.0008376654,0.00005594655,0.0004008745,0.01557656],"study_design_scores_gemma":[0.00001711022,0.0004691051,0.996114,0.00005519177,0.00009397976,0.0004452527,0.0000623005,0.001648729,0.0003428138,0.0001688692,0.0005689969,0.0000136381],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.986609,0.005852208,0.002249742,0.0003009296,0.00009732693,0.00005993309,0.001631077,0.00005543037,0.003144141],"genre_scores_gemma":[0.9971221,0.0005730576,0.001416803,0.00006523576,0.00007574802,0.00004205547,0.0004698583,0.000003672517,0.0002314503],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.001819851,"threshold_uncertainty_score":0.006088018,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.016260760381951,"score_gpt":0.2537526663428805,"score_spread":0.2374919059609295,"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."}}