Dataset Information

Weekday and weekend sleep duration and mortality among middle-to-older aged White and Black adults in a low-income southern US cohort.

ABSTRACT: INTRODUCTION:Both short and long sleep have been associated with higher mortality. However, most studies are conducted in predominantly White or Asian populations and little is known about the sleep-mortality relationship in Blacks. Given the high prevalence of short and long sleep in Blacks, it is important to examine the health effects of sleep in this population. METHODS:We studied sleep duration in relation to all-cause, cardiovascular and cancer mortality in 55,375 participants age 40-79 at enrollment in the Southern Community Cohort Study, of whom ?2/3 are Black. Weekday and weekend sleep durations were self-reported. Mortality follow up started at baseline (2002-2009) and was regularly updated until 2015 via linkage to Social Security Administration and the National Death Index. We used Cox proportional hazards model adjusting for multiple covariates to estimate relative risks associated with sleep duration. RESULTS:We found U-shaped relationships between weekday and weekend sleep duration and all-cause mortality, with the effects stronger in Whites than Blacks. Risks for all-cause mortality were significantly elevated by about 25% among Whites and about 10% among Blacks reporting either less than 5 hours or more than 9 hours of sleep compared with those reporting 8 hours of sleep. The associations among Whites but not Blacks were even stronger for cardiovascular disease mortality, whereas no association between sleep duration and cancer mortality was found in either group. CONCLUSIONS:Our results suggest that short and long sleep durations may be weaker predictors of total and cardiovascular mortality in Blacks than in Whites.

SUBMITTER: Xiao Q

PROVIDER: S-EPMC6801047 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Weekday and weekend sleep duration and mortality among middle-to-older aged White and Black adults in a low-income southern US cohort.

Xiao Qian Q Blot William J WJ Matthews Charles E CE

Sleep health 20190614 5

<h4>Introduction</h4>Both short and long sleep have been associated with higher mortality. However, most studies are conducted in predominantly White or Asian populations and little is known about the sleep-mortality relationship in Blacks. Given the high prevalence of short and long sleep in Blacks, it is important to examine the health effects of sleep in this population.<h4>Methods</h4>We studied sleep duration in relation to all-cause, cardiovascular and cancer mortality in 55,375 participan ...[more]

PMID: 31204307

Similar Datasets

Project description:Housing environments can directly and indirectly affect sleep, and blacks are more likely than whites to live in suboptimal housing conditions, which may independently contribute to sleep disparities. However, few large-scale epidemiological studies consider the potential influence of housing type on sleep health. Using data from the 2004-2015 National Health Interview Survey, we investigated overall and Black-White differences in the association between housing type (house/apartment versus mobile home/trailer) and sleep duration as well as sleep difficulties among 226,208 adults in the U.S. Poisson regression with robust variance was used to estimate sex-specific prevalence ratios (PR) for sleep categories, first comparing houses/apartments to mobile homes/trailers and then blacks to whites within housing types. All models were adjusted for age, educational attainment, income, occupational class, self-reported general health status, and region of residence. Compared to participants living in houses/apartments, the prevalence of short sleep was higher for men (PR = 1.05 (95% confidence interval (CI): 1.02-1.08)) and women (PR = 1.07 (95% CI: 1.04-1.09)) in mobile homes/trailers. Black men (PR = 1.26 (95% CI: 1.21-1.30)) and women (PR = 1.24 (95% CI: 1.20-1.27)) in a house/apartment were more likely to be short sleepers than their white counterparts. There was generally no significant difference in sleep characteristics (except long sleep) between black and white men in mobile homes/trailers after adjustments, and black men in houses/apartments as well as black women in both housing types were less likely to report sleep difficulties although being more likely to report short sleep. Overall, individuals in mobile homes/trailers, which may represent suboptimal housing, had worse sleep than those in houses/apartments; and racial differences in the quality of houses and apartments are likely to greatly vary in ways that still contribute to sleep disparities. Race-sex group differences in sleep duration among residents in a house/apartment and even a lack of racial difference among individuals living in mobile homes/trailers support the need for more research on residential environments and eventually multi-level interventions designed to reduce sleep disparities.

Dataset Information

Weekday and weekend sleep duration and mortality among middle-to-older aged White and Black adults in a low-income southern US cohort.

Publications

Weekday and weekend sleep duration and mortality among middle-to-older aged White and Black adults in a low-income southern US cohort.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets