Abstract
Background: Suboptimal sleep, including insufficient/long sleep duration and poor sleep quality, is a risk factor for cardiovascular disease (CVD) common but there is little information among African Americans, a group with a disproportionate CVD burden. The current study examined the association between suboptimal sleep and incident CVD among African Americans. Methods: This study included 4,522 African Americans without CVD at baseline (2000–2004) of the Jackson Heart Study (JHS). Self-reported sleep duration was defined as very short (<6 h/night), short (6 h/night), recommended (7–8 h/night), and long (≥9 h/night). Participants’ self-reported sleep quality was defined as “high” and “low” quality. Suboptimal sleep was defined by low quality sleep and/or insufficient/long sleep duration. Incident CVD was a composite of incident coronary heart disease and stroke. Associations between suboptimal sleep and incident CVD were examined using Cox proportional hazards models over 15 follow-up years with adjustment for predictors of CVD risk and obstructive sleep apnea. Results: Sample mean age was 54 years (SD = 13), 64% female and 66% reported suboptimal sleep. Suboptimal sleep was not associated with incident CVD after covariate adjustment [HR(95% CI) = 1.18(0.97–1.46)]. Long [HR(95%CI) = 1.32(1.02–1.70)] and very short [HR(95% CI) = 1.56(1.06–2.30)] sleep duration were associated with incident CVD relative to recommended sleep duration. Low quality sleep was not associated with incident CVD (p = 0.413). Conclusions: Long and very short self-reported sleep duration but not self-reported sleep quality were associated with increased hazard of incident CVD.
Original language | English (US) |
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Pages (from-to) | 89-97 |
Number of pages | 9 |
Journal | Sleep Medicine |
Volume | 76 |
DOIs | |
State | Published - Dec 2020 |
Keywords
- African Americans
- Cardiovascular disease
- Jackson Heart Study
- Sleep duration
- Sleep quality
- United States
- Cardiovascular Diseases/epidemiology
- Humans
- Middle Aged
- Risk Factors
- Male
- Incidence
- Sleep
- Time Factors
- Adult
- Female
- Aged
- Longitudinal Studies
ASJC Scopus subject areas
- General Medicine