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Figure 3 Number of items with self-reported lower extremity mobility difficulty (LEMD) (A), lower extremity function summary performance score (SPS) (B), and distance walked in 6 min (6MWT) (C) compared between participants with and without heart failure (HF) according to different criteria. Data are least square means, adjusted for age, gender, Mini Mental State Examination, Geriatric Depression Scale, and Index of Coexisting Diseases. Open bars = non-HF; closed bars = HF. ESC = European Society of Cardiology; SEM = standard error of the mean.