Insomnia and its association with hypertension in a community-based population in China: a cross-sectional study.
OBJECTIVE
To investigate the prevalence of hypertension and its association with insomnia in a community-based population in China.


METHODS
A cross-sectional study which recruited 10 054 participants aged ≥18 years was conducted in Beijing. The association between self-reported insomnia and hypertension was determined by multiple logistic regression models. Age, gender, education, obesity, body mass index, physical activity, current smoking, current drinking, work stress, diabetes and dyslipidaemia were adjusted for as confounders. Prevalence ratios (PRs) with corresponding 95% CIs were reported as effect measurements.


RESULTS
The number of subjects with no insomnia, occasional insomnia and frequent insomnia was 7632 (75.9%), 1545 (15.4%) and 877 (8.7%), respectively. The prevalence of hypertension in those with no insomnia, occasional insomnia and frequent insomnia was 37.3%, 43.0% and 48.0%. Compared with subjects with no insomnia, the multivariate adjusted PRs and 95% CIs for those with occasional insomnia and frequent insomnia were 1.01 (0.91 to 1.12) and 0.92 (0.83 to 1.03) for men and 1.08 (1.00 to 1.16) and 1.12 (1.02 to 1.22) for women.


CONCLUSIONS
Self-reported insomnia is associated with a higher risk of hypertension in women.
Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, P. R. China; Institute of Clinical Epidemiology, School of Public Health, Fudan University, Shanghai, P. R. China.
Yiqiang
Y
Zhan
Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, P. R. China; Institute of Clinical Epidemiology, School of Public Health, Fudan University, Shanghai, P. R. China.
Ruoqing
R
Chen
Department of Chronic Disease Prevention , Minhang District Center for Disease Control and Prevention , Shanghai , P. R. China.
Fen
F
Zhang
Department of Preventive Medicine , School of Medicine, Yangzhou University , Yangzhou , P. R. China.
Jinsong
J
Wang
Heart Center, Peking University People's Hospital, Peking University , Beijing , P. R. China.
Yihong
Y
Sun
Heart Center, Peking University People's Hospital, Peking University , Beijing , P. R. China.
Rongjing
R
Ding
Heart Center, Peking University People's Hospital, Peking University , Beijing , P. R. China.
Dayi
D
Hu
Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, P. R. China; Institute of Clinical Epidemiology, School of Public Health, Fudan University, Shanghai, P. R. China.
Jinming
J
Yu
Hypertension