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Data are scarce regarding the prevalence of frailty in elderly patients undergoing maintenance hemodialysis (HD) in India. We conducted a cross-sectional observational study aimed to study the prevalence of frailty and cognitive dysfunction in patients aged 75 years or more undergoing maintenance HD in three tertiary care hospitals and associated stand-alone dialysis centers in North Kerala. Frailty was ascertained by two methods. In method 1 (physical performance measurement based), dichotomous scoring (0 or 1) of five domains, namely w