Comparison of sleep quality between hemodialysis and peritoneal dialysis patients

Aim Sleep disorders are common in patients with end-stage renal disease. Although studies have been conducted on the type and frequency of sleep disturbances in hemodialysis and peritoneal dialysis patients, there has been no study comparing the sleep quality between these two groups. Therefore, we aimed to compare sleep quality between hemodialysis and peritoneal dialysis patients. Methods A total of 102 patients (52 hemodialysis and 50 peritoneal dialysis) were included in the study. The Pittsburgh sleep quality index (PSQI) was used for the assessment of sleep quality. Two groups were compared for seven components of the PSQI questionnaire and global score as well as for clinical and laboratory findings. We also assessed the independent predictors of sleep quality. Results There were 51 male and 51 female patients (29 male and 23 female in hemodialysis group versus 22 male and 28 female in peritoneal dialysis group). The mean age was 55.5 +/- 14.6 years in the hemodialysis and 51.5 +/- 18.1 years in the peritoneal dialysis group. The median dialysis duration was 36 (77.0) months. The sleep quality was poor in 88.5% of the hemodialysis patients and 78.0% of the peritoneal dialysis patients. However, this difference in sleep quality was not significant between the two groups (P > 0.05). There was a significant association between the sleep quality and the age, presence of diabetes mellitus, and serum albumin. Among these variables, only age was found to be an independent predictor of sleep quality. Conclusions Hemodialysis and peritoneal dialysis patients had a similar high rate of poor sleep quality. Further studies are necessary to investigate the causes of poor quality of sleep and to investigate methods to improve sleep quality in this population.