Cited by 33Sleep and related disordersHealth disparities and outcomesGenetic Associations and Epidemiology

Sleep duration and area-level deprivation in twins

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Watson, Nathaniel F., Horn, Erin, Duncan, Glen E., Buchwald, Dedra, Vitiello, Michael V., Turkheimer, Eric·2016·SLEEP

Abstract

STUDY OBJECTIVES: We used quantitative genetic models to assess whether area-level deprivation as indicated by the Singh Index predicts shorter sleep duration and modifies its underlying genetic and environmental contributions. METHODS: Participants were 4,218 adult twin pairs (2,377 monozygotic and 1,841 dizygotic) from the University of Washington Twin Registry. Participants self-reported habitual sleep duration. The Singh Index was determined by linking geocoding addresses to 17 indicators at the census-tract level using data from Census of Washington State and Census Tract Cartographic Boundary Files from 2000 and 2010. Data were analyzed using univariate and bivariate genetic decomposition and quantitative genetic interaction models that assessed A (additive genetics), C (common environment), and E (unique environment) main effects of the Singh Index on sleep duration and allowed the magnitude of residual ACE variance components in sleep duration to vary with the Index. RESULTS: The sample had a mean age of 38.2 y (standard deviation [SD] = 18), and was predominantly female (62%) and Caucasian (91%). Mean sleep duration was 7.38 h (SD = 1.20) and the mean Singh Index score was 0.00 (SD = 0.89). The heritability of sleep duration was 39% and the Singh Index was 12%. The uncontrolled phenotypic regression of sleep duration on the Singh Index showed a significant negative relationship between area-level deprivation and sleep length (b = -0.080, P < 0.001). Every 1 SD in Singh Index was associated with a ∼4.5 min change in sleep duration. For the quasi-causal bivariate model, there was a significant main effect of E (b(0E) = -0.063; standard error [SE] = 0.30; P < 0.05). Residual variance components unique to sleep duration were significant for both A (b(0Au) = 0.734; SE = 0.020; P < 0.001) and E (b(0Eu) = 0.934; SE = 0.013; P < 0.001). CONCLUSIONS: Area-level deprivation has a quasi-causal association with sleep duration, with greater deprivation being related to shorter sleep. As area-level deprivation increases, unique genetic and nonshared environmental residual variance in sleep duration increases.

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Crossref · 10.5665/sleep.5320

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  • Watson and colleagues combined geospatial neighborhood analyses with sleep genetic information to characterize a social-environmental influence on sleep duration.

    “An example of one study that brought these methodologies together is cited by Watson and colleagues,268 who combined geospatial neighborhood analyses with sleep genetic information to characterize a social-environmental influence on sleep duration.”

    From Sleep, Health, and Society (2017) · cites this paper as [268]

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Authors
Watson, N. F., Horn, E., Duncan, G. E., Buchwald, D., Vitiello, M. V., & Turkheimer, E.
Affiliations
  • University of Washington (US)
  • University of Virginia (US)
Corresponding author
Watson, Nathaniel F.
Venue
SLEEP
Published
2016-01-01
Volume
39
Issue
1
Pages
67-77
ISSN
  • 0161-8105 (ISSN-L)
  • 1550-9109
OpenAlex
W2410357234
Cited by
33
References
67
Citations by year
2026: 3 · 2025: 2 · 2024: 1 · 2023: 7 · 2022: 2 · 2021: 4 · 2020: 2 · 2019: 4 · 2018: 3 · 2017: 2 · 2016: 3
FWCI
4.03
Type
journal article
Language
en
Open access
Locations
  • SLEEP (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (OD006547)
  • National Institute on Aging (R01AG042176)
  • National Heart, Lung, and Blood Institute (K23HL083350)
  • National Institute of Nursing Research (P30NR011400)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Social Sciences › Health › Health disparities and outcomes
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
Keywords
sleep duration, area deprivation, Singh index, heritability, twin studies, unique environmental effects, nonshared environment, additive genetic effects, shared environment, residual variance, socioeconomic deprivation
MeSH terms
Adult, Environment, Female, Humans, Male, Models, Genetic, Registries, Sleep, Socioeconomic Factors, Time Factors, Twins, Dizygotic, Twins, Monozygotic, Washington, Censuses, White People, Self Report, Gene-Environment Interaction

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