Association between sleep duration and diabetes in black and white adults.
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ABSTRACT: Objective
To examine racial differences in sleep duration and its relationship with diabetes.Research design and methods
We used data from a nationally representative sample of U.S. adults (n = 130,943) participating in the National Health Interview Survey from 2004 to 2011. Usual sleep duration was self-reported and categorized as <7 h (short), 7 h (optimal), and >7 h (long). Diabetes status was based on self-reported diagnosis from a health professional.Results
Participants' mean age was 50.6 years, 49% were men, and 13% were black. Compared with whites, blacks were more likely to report short sleep (37 vs. 28%) and less likely to get 7 h of sleep (24 vs. 33%). Diabetes (9,643 cases [9%] in whites and 3,612 cases [15%] in blacks) had a U-shaped distribution with sleep in whites (10, 7, and 9%, for short, optimal, and long sleep, respectively) and blacks (16, 13, and 15%). Suboptimal sleep duration was more strongly associated with diabetes in whites than in blacks among short (prevalence ratio 1.49 [95% CI 1.40-1.58] vs. 1.21 [1.09-1.34]) and long (1.32 [1.25-1.40] vs. 1.11 [1.00-1.23]) sleepers on the relative scale. Adjustment for socioeconomic status (SES) attenuated the short sleep-diabetes association in blacks (1.15 [1.02-1.29]), and the racial/ethnic difference in the short sleep-diabetes association became nonsignificant after SES adjustments.Conclusions
Suboptimal sleep duration was positively associated with diabetes in blacks and whites, although diabetes prevalence was higher at any level of sleep in blacks. Socioeconomic factors appear to partly explain the association for short sleep in blacks as well as disparity between racial groups.
SUBMITTER: Jackson CL
PROVIDER: S-EPMC3816913 | biostudies-literature |
REPOSITORIES: biostudies-literature
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Project description:ObjectivesAlthough sleep, chronic disease and its related mortality are extensively studied areas, the association between stroke and sleep duration is relatively unknown. The aim of this study was to investigate the association between long and short sleep duration and stroke prevalence.DesignA cross-sectional survey study.Setting and participantsAdult surveyees (aged ?19 years) who answered items relating to sleep duration and stroke in the 2010-2014 Korean National Health and Nutrition Surveys (n=17?601).Outcome measuresParticipants were divided into three groups by sleep duration (short: ?6?hours/day, normal: 7-8?hours/day and long: ?9 hours/day). Stroke prevalence in each sleep duration group was compared using logistic regression analysis, and sociodemographic characteristics, medical history, lifestyle habits and mental health factors were set as confounding variables.ResultsOn adjusting for sex and age, each sleep-duration group displayed significantly different health-related characteristics. The short sleep and long sleep duration groups indicated significantly higher psychological factors for stress perception, depressive symptoms and psychiatric counselling compared with the normal sleep duration group. On adjustment of various confounders, the long sleep duration group demonstrated significantly higher ORs for stroke compared with the normal sleep duration group (OR 1.96, 95%?CI 1.06 to 3.61). Also, when stratified by sex, men did not exhibit differences in stroke prevalence by sleep duration, but women showed higher stroke prevalence in the long sleep duration group compared with normal sleep duration (OR 2.94, 95%?CI 1.21 to 7.17).ConclusionsLonger sleep duration was associated with higher stroke prevalence, and this trend was more pronounced in women.
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