Korean J Fam Med.  2016 Mar;37(2):130-134. 10.4082/kjfm.2016.37.2.130.

The Association between Sleep Duration and Hypertension in Non-obese Premenopausal Women in Korea

Affiliations
  • 1Department of Family Medicine, Yeungnam University Medical Center, Yeungnam University College of Medicine, Daegu, Korea. spjung@yu.ac.kr

Abstract

BACKGROUND
Previous studies have revealed that sleep duration is linked to both obesity and hypertension. Here, we evaluated the association between sleep duration and hypertension in obese and non-obese premenopausal women using representative national survey data from the Korean population.
METHODS
A total of 4,748 subjects over 20 years of age from the Korean National Health and Nutrition Examination Survey from 2010 to 2012 were included. To control for risk factors, multivariable logistic regression was used to calculate the adjusted odds ratios and 95% confidence intervals of hypertension across the following sleep duration categories: <6, 6-8, and >8 h/d.
RESULTS
Among the participants, 367 subjects (7.7%) had hypertension. Their mean sleep duration was 7 hours. In the non-obese subjects, after controlling for potential confounding variables, the odds ratio for hypertension was 1.86 fold greater in those with a sleep duration of <6 hours (odds ratio, 1.79; 95% confidence interval, 1.05 to 3.03) as compared to those who slept for 6.8 hours. However, there was no association between sleep duration and the risk of hypertension in obese subjects. Long sleep duration (over 8 h/d) was not associated with hypertension in either the non-obese or the obese subjects in this study.
CONCLUSION
Short sleep duration (less than 6 h/d) may be a significant risk factor for hypertension in non-obese premenopausal women. However, there is no association between sleep duration and the risk of hypertension in obese women.

Keyword

Sleep; Hypertension; Obesity

MeSH Terms

Confounding Factors (Epidemiology)
Female
Humans
Hypertension*
Korea*
Logistic Models
Nutrition Surveys
Obesity
Odds Ratio
Risk Factors
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