Cited by 255Sleep and related disordersSleep and Wakefulness ResearchSleep and Work-Related Fatigue

Normal sleep in African-Americans and Caucasian-Americans: a meta-analysis

Ruiter, Megan E., DeCoster, Jamie, Jacobs, Lindsey, Lichstein, Kenneth L.·2011·Sleep Medicine

Abstract

Objective This meta-analysis was designed to estimate the average magnitude of ethnic differences between African-Americans and Caucasian-Americans in normal sleep and to identify moderators of these differences.Methods Included studies had to have (1) sufficient information to estimate the difference between African-Americans and Caucasian-Americans on measures of subjective or objective sleep, (2) adult samples, and (3) samples of normal sleepers. Fourteen studies representing 1010 African-Americans and 3156 Caucasian-Americans aged 18years and older met these criteria.Results Significant ethnic differences were found, with mean effect sizes ranging from -.23 to .57. African-Americans had poorer sleep continuity and duration, less slow wave sleep, and a greater proportion of stage 2 sleep. Differences in sleep continuity and duration variables were moderated by several biopsychosocial factors, whereas sleep architecture differences were not influenced by any examined moderating factor.Conclusions African-Americans slept worse objectively and subjectively than Caucasian-Americans. Sleep continuity and duration were moderated by biopsychosocial factors whereas sleep architecture was not. Implications and future research are discussed.

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Crossref · 10.1016/j.sleep.2010.12.010

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  • Blacks/African-Americans obtained less Slow Wave Sleep than Non-Hispanic Whites.

    “Blacks/African-Americans also obtained less Slow Wave Sleep. Other studies have also found that Blacks/African-Americans obtained less Slow Wave Sleep(215-219)”
  • A meta-analysis of 14 studies of people without suspected sleep disorders using actigraphy or PSG found that African Americans sleep almost 30 minutes less, take 6 minutes longer to fall asleep, have 5% lower sleep efficiency and have 8% less slow wave sleep than non-Hispanic whites.

    “A recent meta-analysis of data from 14 studies that enrolled people without suspected sleep disorders and used either actigraphy or PSG demonstrated that on average African Americans sleep almost 30 minutes less, take 6 minutes longer to fall sleep, have 5% lower sleep efficiency and have 8% less SWS than non-Hispanic whites [17]”

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Authors
Ruiter, M. E., DeCoster, J., Jacobs, L., & Lichstein, K. L.
Affiliations
University of Alabama (US)
Corresponding author
Ruiter, Megan E.
Venue
Sleep Medicine
Publisher
Elsevier BV
Published
2011-03
Volume
12
Issue
3
Pages
209-214
ISSN
1389-9457 (ISSN-L)
OpenAlex
W2094589448
Cited by
255
References
40
Citations by year
2026: 11 · 2025: 17 · 2024: 15 · 2023: 29 · 2022: 27 · 2021: 17 · 2020: 24 · 2019: 24 · 2018: 10 · 2017: 20 · 2016: 14 · 2015: 16 · 2014: 14 · 2013: 12 · 2012: 4
FWCI
12.77
Type
journal article
Language
en
Open access
closed
Locations
  • Sleep Medicine (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
Keywords
African Americans, White Americans, sleep continuity, sleep duration, slow-wave sleep, stage 2 sleep, sleep architecture, biopsychosocial factors, normal sleep
MeSH terms
Black or African American, Humans, Sleep, Sleep Wake Disorders, United States, White People

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