Frailty Attenuates the Prognostic Value of Multimorbidity in Heart Failure - Insights From the Largest Tertiary Center in the Middle East.
OBJECTIVE To evaluate whether frailty modifies the association of multimorbidity in HF. METHODS A retrospective cohort study of HF patients. Multimorbidity was quantified using 26 conditions and categorized as low (≤4), intermediate (5-7), or high (>8). Frailty was defined using a multimodal construct integrating fun...