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KMID : 1100920220430050312
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Korean Journal of Family Medicine
2022 Volume.43 No. 5 p.312 ~ p.318
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Impact of Sleep Duration on Decline in Kidney Function in Adult Patients with Hypertension: A Community-Based Prospective Cohort Study
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Cha Yoon-Jun
Kim Ju-Young
Cho Eun-Byul
Lee Kee-Hyuck
Lee Ki-Heon
Bae Woo-Kyung
Lee Hye-Jin
Han Jong-Soo
Jung Se-Young
Lee Su-Mi
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Abstract
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Background: Sleep duration is associated with various health conditions, including chronic kidney disease. However, the association between sleep duration and decline in kidney function in the South Korean population remains unclear. We aimed to investigate the impact of sleep duration on kidney function decline in adult patients with hypertension.
Methods: This cohort study was performed using data obtained from the Korean Genome and Epidemiology Study; 2,837 patients with hypertension who initially had normal kidney function were included. Glomerular filtration rates (GFRs) were estimated at baseline and throughout the 16 years of follow-up. A person was considered to have a decline in kidney function if they had a GFR <60 mL/min/1.73 m2. Sleep duration data were obtained through interviewer-assisted questionnaires. Sleep durations were classified as short (<6 hours), normal (≥6 hours but <9 hours), and long (≥9 hours). The Cox proportional hazards model was applied, with adjustments for covariates.
Results: After adjusting for covariates, sleep duration was not associated with a decline in kidney function. However, among men with poorly controlled hypertension at baseline, compared to men with normal sleep durations, men with sleep durations <6 hours had a significantly higher risk of kidney function decline (hazard ratio, 1.56; 95% confidence interval, 1.02?2.36).
Conclusion: Short sleep duration did not seem to be associated with an increased risk of decline in kidney function; however, it may be a risk factor for the decline in kidney function in men with poorly controlled hypertension.
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KEYWORD
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Sleep, Decline in Kidney Function, Hypertension, Glomerular Filtration Rate
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