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Soc Sci Med. 2013 May;85:1-8. doi: 10.1016/j.socscimed.2013.02.023. Epub 2013 Feb 21.

Socioeconomic status, health behavior, and leukocyte telomere length in the National Health and Nutrition Examination Survey, 1999-2002.

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  • 1Department of Epidemiology and Center for Social Epidemiology and Population Health, 1415 Washington Heights, 2663 SPH Tower, Ann Arbor, MI 48109-2029, USA. needhamb@umich.edu

Abstract

The purpose of this study was to examine the association between socioeconomic status (SES) and leukocyte telomere length (LTL) - a marker of cell aging that has been linked to stressful life circumstances - in a nationally representative, socioeconomically and ethnically diverse sample of US adults aged 20-84. Using data from the National Health and Nutrition Examination Survey (NHANES), 1999-2002, we found that respondents who completed less than a high school education had significantly shorter telomeres than those who graduated from college. Income was not associated with LTL. African-Americans had significantly longer telomeres than whites, but there were no significant racial/ethnic differences in the association between education and telomere length. Finally, we found that the association between education and LTL was partially mediated by smoking and body mass index but not by drinking or sedentary behavior.

Copyright © 2013 Elsevier Ltd. All rights reserved.

PMID:
23540359
[PubMed - indexed for MEDLINE]
PMCID:
PMC3666871
Free PMC Article
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