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Sleep Med. 2014 Sep;15(9):1115-21. doi: 10.1016/j.sleep.2014.04.019. Epub 2014 May 27.

Ethnic differences in self-reported sleep duration in The Netherlands--the HELIUS study.

Author information

1
Department of Public Health, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands. Electronic address: k.o.anujuo@amc.uva.nl.
2
Department of Public Health, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
3
Department of Medicine, Center for Healthful Behavior Change, Division of General Internal Medicine, New York University School of Medicine, New York, NY 10010, USA.

Abstract

BACKGROUND:

We investigated ethnic differences in sleep duration, and the contribution of socio-economic status (SES) to the observed differences in Amsterdam, The Netherlands.

METHODS:

6959 participants (aged 18-71 years) from the multi-ethnic HELIUS cohort were studied. Outcome variables were short sleep (<7 h/night) and long sleep (≥9 h/night). Comparisons among groups were made using Prevalence Ratios (PRs).

RESULTS:

Ethnic minority groups were more likely than ethnic-Dutch to report short sleep, with prevalence ranging from 15.1% to 49.7% in men and 16.3% to 41.4% in women. Among men, the age-adjusted PRs ranged from 2.15 (95% CI 1.72-2.69) in Turkish to 3.31 (2.75-3.99) in Ghanaians; and among women, from 1.62 (1.30-2.01) in Turkish to 2.52 (2.15-2.95) in African-Surinamese, respectively. The prevalence of long sleep was significantly higher only in Moroccan men and all the ethnic minority women than in ethnic-Dutch women except for African-Surinamese. Adjustment for SES explains the ethnic difference in long sleep, but not for short sleep.

CONCLUSION:

Ethnic minority groups reported more short sleep than ethnic-Dutch, while there were no ethnic differences in long sleep. Further study is needed to investigate how this finding on short sleep may contribute to ethnic differences in health outcomes.

KEYWORDS:

Ethnicity; Minority group; Shift work; Sleep; Sleep duration; Socioeconomic status

PMID:
25047172
DOI:
10.1016/j.sleep.2014.04.019
[Indexed for MEDLINE]

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