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  • Title: Sleep duration and quality in relation to chronic kidney disease and glomerular hyperfiltration in healthy men and women.
    Author: Kim CW, Chang Y, Sung E, Yun KE, Jung HS, Ko BJ, Kwon MJ, Hyun YY, Lee KB, Kim H, Shin H, Ryu S.
    Journal: PLoS One; 2017; 12(4):e0175298. PubMed ID: 28423054.
    Abstract:
    BACKGROUND: It is unclear whether sleep duration and quality are associated with chronic kidney disease (CKD) and glomerular hyperfiltration. The aim of this study was to examine the association of sleep duration and quality with CKD and glomerular hyperfiltration in young and middle-aged adults. METHODS: We conducted a cross-sectional study of men and women who underwent a health checkup examination, including assessment of sleep duration and quality (n = 241,607). Chronic kidney disease (CKD) was defined as an estimated glomerular filtration rate (eGFR) less than 60 ml/min/1.73 m2, and glomerular hyperfiltration was defined as eGFR above the age-/sex-specific 95th percentile. RESULTS: In a multinomial logistic regression analysis adjusting for relevant confounders, the adjusted prevalence ratios for CKD (95% confidence interval) comparing sleep durations of ≤ 5, 6, 8, and 9 hours with 7 hours were 1.22 (0.95-1.55), 0.93 (0.75-1.14), 0.97 (0.75-1.26), and 1.56 (1.06-2.30) in men and 0.98 (0.68-1.43), 1.03 (0.72-1.46), 1.39 (0.97-2.00), and 1.31 (0.78-2.22) in women, respectively. The corresponding prevalence ratios (95% confidence interval) for glomerular hyperfiltration were 1.00 (0.93-1.08), 0.97 (0.91-1.03), 1.03 (0.94-1.13), and 1.39 (1.13-1.72) in men and 1.04 (0.95-1.14), 0.96 (0.90-1.04), 1.11 (1.02-1.20), and 1.28 (1.14-1.45) in women, respectively. Poor subjective sleep quality was associated with glomerular hyperfiltration in men and women. CONCLUSION: In this large study of young and middle-aged adults, we found that long sleep duration was associated with CKD and glomerular hyperfiltration. Additionally, poor subjective sleep quality was associated with increased prevalence of glomerular hyperfiltration, suggesting the importance of adequate quantity and quality of sleep for kidney function.
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