In CKD Patients, Sleep Duration Significantly Affects Quality of Life

Short or long sleep duration is associated with lower health-related quality of life (HRQOL) in patients with chronic kidney disease (CKD), according to the results of a recent study.

Previous research has shown that sleep duration is associated with cardiometabolic risk and mortality, but little information is available on its effects on quality of life in patients with CKD.

The researchers conducted a cross-sectional study using data from 1910 adults with CKD enrolled in the Korean Cohort Study for Outcome in Patients with CKD. HRQOL was assessed using the physical component summary and mental component summary of the Short Form-36 Health Survey, with a score of more than 1 SD below the mean designating low HRQOL.

They found that 7-hour sleepers had the highest HRQOL, with an inverted U-shaped relationship between sleep duration and HRQOL. In multivariable logistic analysis, those who slept 5 hours per day or less and those who slept for 9 or more hours per day had lower HRQOL compared with 7-hour sleepers.

“These findings suggest that short or long sleep duration is independently associated with low health-related quality of life in adults with CKD,” the researchers wrote.

—Michael Potts

Reference:

Sung S, Hyun YY, Lee KB, et al. Sleep duration and health-related quality of life in predialysis CKD. CJASN. 2018;13(6):858-865.