Evaluation of subjective sleep quality in hemodialysis patients and its association with hemodialysis timing

Sleep disorders are a common problem in patients undergoing hemodialysis. Poor sleep quality is considered as a potential predictor for mortality and reduced quality of life in these patients. This study aimed to evaluate subjective sleep quality in hemodialysis patients and its association with hemodialysis timing. Methods: This descriptive-correlational study was conducted on 125 patients undergoing hemodialysis in eight teaching hospitals affiliated to Mazandaran University of Medical Sciences, Iran in 2015. Dialysis patients were selected from all the timings. Subjective sleep quality was measured using Pittsburgh Sleep Quality Index (PSQI). In addition, participants completed Beck Depression Inventory (BDI). Data analysis was performed by using Chi-square test, ANOVA and logistic regression model. Results: In total, 210 patients were enrolled in this study, and 79 patients (63.2%) had poor sleep quality. Moreover, no significant association was found between subjective Sleep quality and hemodialysis timing. However, age (β=0.017, confidence interval [CI]: 0.003-0.034, P=0.034), unemployment (β=0.695, CI: 0.0458-2.7702, P=0.043) and residence in rural areas (β=0.435, CI: 0.072-1.777, P=0.033) were identified as significant predictors for poor sleep quality. Conclusion: According to the results of this study, poor sleep quality had no significant correlation with hemodialysis timing. Since subjective sleep quality is a common problem in hemodialysis patients, nursing care plans should be implemented to improve this parameter and quality of life in these patients.