Normal sleep in African-Americans and Caucasian-Americans: A meta-analysis.

Autor: Ruiter ME; Department of Psychology, The University of Alabama, Tuscaloosa, AL 35487, USA. meruiter@crimson.ua.edu, Decoster J, Jacobs L, Lichstein KL
Jazyk: angličtina
Zdroj: Sleep medicine [Sleep Med] 2011 Mar; Vol. 12 (3), pp. 209-14. Date of Electronic Publication: 2011 Feb 12.
DOI: 10.1016/j.sleep.2010.12.010
Abstrakt: 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.
(Published by Elsevier B.V.)
Databáze: MEDLINE
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