Determining sleep quality and investigating its relationship with various demographic and biochemical factors in hemodialysis patients

Introduction: Sleep disorders are one of the most common disorders among hemodialysis patients which is associated with the demographic and laboratory factors of such patients. Objectives: The present study aims to investigate the quality of sleep and its relationship with some demographic and biochemical factors in a group of hemodialysis patients. Patients and Methods: This study is cross-sectional conducted on end-stage renal disease (ESRD) patients who underwent regular and continuous hemodialysis in Amin hospital of Isfahan. The Pittsburgh Sleep Quality Index (PSQI) was completed face-to-face for each individual. Other data included age, hemoglobin and hematocrit, adequacy of hemodialysis, serum alkaline phosphatase, ferritin, iron, calcium, phosphorus, parathyroid hormone and body mass index were receded too. Results: In this study, 110 hemodialysis patients were investigated (71 men). In this study, 41.8% of the patients had sleep disorder. We found, no difference between demographic and laboratory factors of patients with and without sleep disorder (P>0.05 for all parameters). No significant difference was detected among men and women regarding sleep disorder (P>0.05). Accordingly, no significant difference in sleep disorder between patients with and without diabetes was found too (P>0.05). However, our study showed a significant direct relationship between age and sleep disorder (P=0.026) particularly in women (P=0.011). Conclusion: Sleep disorder is common in patients undergoing hemodialysis and is directly related to the patients’ age; however, larger studies in this field are necessary.