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We have previously shown that poorer appetite was a significant predictor of decreased sleep quality (SQ) among maintenance hemodialysis (MHD) patients. There is a gap in the literature when examining sleep duration (SD) in MHD patients and the variables that may predict SD. Using data from the HEMO Study, demographic, case mix, nutrition-related and quality of life (QOL) variables were explored as predictors of SD in 1805 MHD patients. Self-reported SD (in hrs) in the last 24 hrs was assessed annually using questions from the KDQOL instrument. A multinominal logistic regression analysis was conducted to determine whether SD (short 0–6; medium 7–9; or long 10+) was associated with the selected variables and Kt/V and flux randomized assignments in a longitudinal (repeated measures) model. At baseline, mean SD was 7.8±2.4 hrs; 33%, 43% and 24% of subjects were in the short, medium and long sleep groups, respectively. In univariate analysis, dietary protein intake, serum albumin, appetite, and QOL measures (mental component score [MCS] and physical component score [PCS]) were significant predictors of SD. In multivariate analysis, age (P=0.008), race (White vs. Black) (P=0.001), appetite on dialysis days (DD) (P=0.0001), MCS and PCS (P |
