AUTHOR=Wu Xueyan , Liu Xiaotian , Liao Wei , Kang Ning , Sang Shengxiang , Abdulai Tanko , Zhai Zhihan , Wang Chongjian , Wang Xiaoqiong , Li Yuqian 

TITLE=Association of Night Sleep Duration and Ideal Cardiovascular Health in Rural China: The Henan Rural Cohort Study

JOURNAL=Frontiers in Public Health

VOLUME=Volume 8 - 2020

YEAR=2021

URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2020.606458

DOI=10.3389/fpubh.2020.606458

ISSN=2296-2565

ABSTRACT=Introduction: We aimed to explore the association between night sleep duration and ideal cardiovascular health (ICH) among Chinese rural population.
Methods: In all, 35094 participants were included from the Henan Rural Cohort study. Information on sleep was collected using the Pittsburgh Sleep Quality Index. The ICH scores were evaluated. The associations between night sleep duration and ideal cardiovascular health were examined using both linear regression and logistic regression models. 
Results: The mean night sleep duration for all participants was 7.75 ± 1.28 hours. Compared with those with night sleep duration of 7 to <9 hours by using linear regression model, a significant decrease in ICH scores was observed for participants with shorter (-0.077(-0.131, -0.024)) and longer (-0.079(-0.121, -0.036)) night sleep duration. Compared with 7 to <9 hours, longer sleep duration (0.919(0.851, 0.992)) were associated with decreased odds of ideal CVH. 
Conclusions: Shorter and longer night sleep duration are negatively associated with ideal cardiovascular health among rural population. This suggests that it may be beneficial to include night sleep duration assessment in cardiovascular risk screening.