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

Abstract

BackgroundPrevious 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.MethodsA 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.ResultsAmong 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.ConclusionShort 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.

A study of sleep duration, body mass index and blood pressure in an adult Kashmiri population

“…19 Another study by Mi-Yeon Song et al also demonstrated that adult premenopausal woman with 6-8 hours of proper sleep showed the lowest prevalence of high blood pressure. 20 This research confirmed that shorter the sleeping hours, greater the prevalence of high blood pressure in adult premenopausal women.A mechanism explaining a connection between sleeping hours and BP is that an elevation in BP in people with both normal and high BP occurs due to excessive invigoration of the sympathetic nerve after short term sleep deprivation. 20 Our study also showed that among normal weight participants 1.1% were hypotensive, 59.7% were normotensive and 39.2% were prehypertensive/ hypertensive.…”

“…20 This research confirmed that shorter the sleeping hours, greater the prevalence of high blood pressure in adult premenopausal women.A mechanism explaining a connection between sleeping hours and BP is that an elevation in BP in people with both normal and high BP occurs due to excessive invigoration of the sympathetic nerve after short term sleep deprivation. 20 Our study also showed that among normal weight participants 1.1% were hypotensive, 59.7% were normotensive and 39.2% were prehypertensive/ hypertensive. Among overweight and obese participants 0.0% were hypotensive, 32.0% were normotensive and 68.0% were prehypertensive/hypertensive.…”

Link between Short Sleep Duration and Hypertension

“…I read with great interest the article by Song et al, 1) titled “The association between sleep duration and hypertension in non-obese premenopausal women in Korea”. The investigators showed the association between short sleep duration (<6 hours a night) and hypertension in non-obese premenopausal women, but not in obese premenopausal women.…”

“…In contrast, long sleep duration (>8 hours a night) was not associated with hypertension in either non-obese or obese women. 1) …”