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Sleep. 2016 Sep 1;39(9):1749-59. doi: 10.5665/sleep.6106.

The Social Patterning of Sleep in African Americans: Associations of Socioeconomic Position and Neighborhood Characteristics with Sleep in the Jackson Heart Study.

Author information

1
Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI.
2
Division of Sleep and Circadian Disorders, Brigham and Women's Hospital and Harvard Medical School, Boston MA.
3
My Brothers Keeper, Inc., Jackson, MS.
4
University of Mississippi Medical Center, Jackson, MS.
5
Department of Public Health and Health Sciences, University of Michigan-Flint, Flint, Michigan.
6
Morehouse School of Medicine's Cardiovascular Research Institute, Atlanta, GA.
7
Dornsife School of Public Health, Drexel University, Philadelphia, PA.

Abstract

STUDY OBJECTIVES:

We investigated cross-sectional associations of individual-level socioeconomic position (SEP) and neighborhood characteristics (social cohesion, violence, problems, disadvantage) with sleep duration and sleep quality in 5,301 African Americans in the Jackson Heart Study.

METHODS:

All measures were self-reported. Sleep duration was assessed as hours of sleep; sleep quality was reported as poor (1) to excellent (5). SEP was measured by categorized years of education and income. Multinomial logistic and linear regression models were fit to examine the associations of SEP and neighborhood characteristics (modeled dichotomously and tertiles) with sleep duration (short vs. normal, long vs. normal) and continuous sleep duration and quality after adjustment for demographics and risk factors.

RESULTS:

The mean sleep duration was 6.4 ± 1.5 hours, 54% had a short (≤ 6 h) sleep duration, 5% reported long (≥ 9 h) sleep duration, and 24% reported fair to poor sleep quality. Lower education was associated with greater odds of long sleep (odds ratio [OR] = 2.19, 95% confidence interval [CI] = 1.42, 3.38) and poorer sleep quality (β = -0.17, 95% CI = -0.27, -0.07) compared to higher education after adjustment for demographics and risk factors. Findings were similar for income. High neighborhood violence was associated with shorter sleep duration (-9.82 minutes, 95% CI = -16.98, -2.66) and poorer sleep quality (β = -0.11, 95% CI = -0.20, 0.00) after adjustment for demographics and risk factors. Results were similar for neighborhood problems. In secondary analyses adjusted for depressive symptoms in a subset of participants, most associations were attenuated and only associations of low SEP with higher odds of long sleep and higher neighborhood violence with poorer sleep quality remained statistically significant.

CONCLUSIONS:

Social and environmental characteristics are associated with sleep duration and quality in African Americans. Depressive symptoms may explain at least part of this association.

KEYWORDS:

African American; Jackson Heart Study; neighborhood characteristics; sleep duration; sleep quality; socioeconomic status

PMID:
27253767
PMCID:
PMC4989264
DOI:
10.5665/sleep.6106
[Indexed for MEDLINE]
Free PMC Article

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