Self‐reported sleep duration and quality and cardiovascular diseases among middle‐aged and older Chinese: A 7‐year longitudinal cohort study

Abstract

Abstract Cardiovascular disease (CVD) is a leading cause of death worldwide, and several studies have attempted to identify its risk factors. This study aimed to investigate the association between sleep duration and sleep quality, and the 7‐year incidence of CVD among middle‐aged and older Chinese individuals. A total of 6682 participants aged 45–90 years from the China Health and Retirement Longitudinal Study database were included in this study. The authors estimated sleep duration and quality based on self‐reported data of night sleep hours and disturbance symptoms, and examined the associations between them and the composite outcome of CVD using logistic regression models. A total of 1692 participants (25.32%) reported new CVD events during follow‐up. Short sleep duration ( 8 h/night). Additionally, participants with mild sleep disturbance in all three models, and severe sleep disturbance in Models 2 and 3 had a significantly higher risk of CVD (p .05). In conclusion, short sleep duration and sleep disturbance are both associated with an increased risk of CVD in middle‐aged and older Chinese individuals.

Keywords

• cardiovascular diseases
• CHARLS
• sleep disturbance
• sleep duration