Key result
A 9-hour night sleep duration was associated with a lower prevalence of hypertension compared to a 7-hour sleep duration (OR 0.7, 95% CI 0.55-0.88) in a large Iranian adult population.
Why the study?
High blood pressure is a major public health concern, and while studies suggest sleep disorders impair health, the dose-response relationship between sleep duration and blood pressure needed evaluation in a large Iranian population.
Does night sleep duration affect the prevalence of hypertension in adults aged 35-65?
Cross-Sectional (n=9,865)
Does night sleep duration affect the prevalence of hypertension in adults aged 35-65?
A 9-hour night sleep duration is associated with a lower prevalence of hypertension compared to a 7-hour sleep duration in an Iranian population.
Short or long sleep may associate with BP levels in Iranians; leaves open causality and needs prospective confirmation before practice implications.
High blood pressure is a serious public health concern that significantly increases the risks of cardiovascular and cerebrovascular events. Several studies suggested that sleep disorders have adverse effects on health. The current study aimed to evaluate the dose-response relationship between sleep duration and blood pressure in the Iranian large general population. A total of 9865 participants aged 35-65 were included. Night sleep duration was classified as ≤5 hours, 6-, 7-, 8-, 9- and ≥10-hour sleep duration. The relation between self-reported sleep duration and prevalent hypertension was examined using Logistic regression. Moreover, restricted cubic spline analysis showed the dose-response association between sleep duration and hypertension.The age-adjusted prevalence of hypertension was 16.5%, 24.2%, and 20.5% in men, women, and the total population, respectively. Compared with reference sleep duration (7 hours) in the total population, the multivariate odds ratio (OR) for hypertension was 0.7 (95% CI: 0.55-0.88) for the group with 9-hour sleep duration and 0.9 (95% CI: 0.74-1.09) for the group with ≤5-hour sleep duration. However, there was no significant association between sleep duration and the prevalence of hypertension in the multivariable model. The age-adjusted cubic spline suggested a linear inverse association between sleep duration and prevalence of hypertension among men and the total population and a non-linear association among women. In conclusion, a 9-hour sleep duration has a negative association with prevalent hypertension. Moreover, an inverse linear association was found between night sleep duration and prevalent hypertension in the total population.
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Asgari et al. (2022) conducted a cross-sectional in Hypertension (n=9,865). 9-hour night sleep duration vs. 7-hour night sleep duration was evaluated on Prevalent hypertension (OR 0.7, 95% CI 0.55-0.88). A 9-hour night sleep duration was associated with a lower prevalence of hypertension compared to a 7-hour sleep duration (OR 0.7, 95% CI 0.55-0.88) in a large Iranian adult population.
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