Abstract

Activities of daily living (ADL) in aged hemodialysis patients decrease by many factors as hemodialysis therapy, various disease-related complications and underlying disease for rehabilitation. But the correlation between low ADL and mortality remains unclear. We assessed the levels of ADL and effects of rehabilitation in hemodialysis patients with low ADL. Moreover, the association between the baseline functional independence measure (FIM) or rehabilitation treatment effects and all-cause mortality were investigated. This prospective cohort study included 182 inpatients on maintenance hemodialysis, who underwent rehabilitation for a decline in ADL. Before and after initiating rehabilitation, ADL were assessed using FIM. The total baseline FIM was 65.1±26.9 (motor items: 39.5±18.7; cognitive items: 25.6±10.7). After rehabilitation, the total FIM increased to 77.1±33.1 (motor items: 50.9±24.4; cognitive items: 26.1±10.8). The baseline FIM, presence or absence of FIM increase, and albumin were significantly associated with mortality. Moreover, the mortality hazard ratio in patients with FIM ≤67 and no FIM increase was 20-fold significantly higher than that in patients with FIM ≥68 and FIM increase. The cognitive items and albumin were significantly associated with the rehabilitation effects in multivariate analysis. Although the FIM decreased by half in hemodialysis patients, rehabilitation improved their FIM (particularly the motor items). The FIM was a novel predictive marker of 3-year mortality in these patients, and an increased FIM after rehabilitation resulted in better prognosis. Moreover, the effectiveness of rehabilitation may depend on maintaining cognitive functions.

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