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Sleep Timing May Predict Congestive Heart Failure: A Community-Based Cohort Study.
Bin Yan1,2, Ruohan Li1, Jiamei Li1
1Department of Critical Care Medicine The Second Affiliated Hospital of Xi'an Jiaotong University Shaanxi China.
Journal of the American Heart Association
|March 5, 2021
Summary
Late bedtimes and wake-up times on weekdays are linked to a higher risk of developing congestive heart failure (CHF). This study highlights the importance of consistent sleep schedules for cardiovascular health.
Area of Science:
- Cardiology
- Sleep Medicine
- Epidemiology
Background:
- Previous research indicates a link between sleep timing and cardiovascular risk factors.
- Limited evidence exists regarding the association between sleep timing and congestive heart failure (CHF).
Purpose of the Study:
- To investigate the relationship between sleep timing and the risk of incident congestive heart failure (CHF).
Main Methods:
- A multicenter prospective cohort study involving 4765 participants from the Sleep Heart Health Study (SHHS) database.
- Sleep timing (bedtimes and wake-up times) was self-reported.
- Cox proportional hazard models were used to analyze the association between sleep timing and CHF over an 11-year follow-up period.
Main Results:
- 519 cases of CHF were reported during the follow-up.
- Delayed weekday bedtimes (>11:00 PM) were associated with an increased risk of CHF (HR, 1.25-1.56).
- Later weekday wake-up times (>8:00 AM) were also linked to a higher risk of incident CHF (HR, 1.53).
Conclusions:
- Delayed weekday bedtimes and wake-up times are associated with an increased risk of developing congestive heart failure (CHF).
- These findings underscore the potential impact of sleep timing on cardiovascular health.
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