Figure 3.

Multivariable Cox proportional‐hazard models of frailty and residence, adjusted for LVEF, MMSE, AIS, BADL, IADL, polypharmacy, age, and male sex. Frailty was diagnosed based on the Fried phenotype. The events were defined as 3‐year mortality or readmission (A), 3‐year all‐cause readmission (B), and 3‐year non‐HF‐related readmission (C). 95% CI, 95% confidence interval; AIS, Athens Insomnia Scale; BADL, basic activities of daily living; HF, heart failure; HR, hazard ratio; IADL, instrumental activities of daily living; LVEF, left ventricular ejection fraction; MMSE, Mini‐Mental State Examination.