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Am J Hypertens. 2011 Feb;24(2):187-93. doi: 10.1038/ajh.2010.200. Epub 2010 Sep 16.

Neighborhood stressors and race/ethnic differences in hypertension prevalence (the Multi-Ethnic Study of Atherosclerosis).

Author information

1
University of California, Berkeley, USA. mmujahid@berkeley.edu

Abstract

BACKGROUND:

The reasons for racial/ethnic disparities in hypertension (HTN) prevalence in the United States are poorly understood.

METHODS:

Using data from the Multi-Ethnic Study of Atherosclerosis (MESA), we investigated whether individual- and neighborhood-level chronic stressors contribute to these disparities in cross-sectional analyses. The sample consisted of 2,679 MESA participants (45-84 years) residing in Baltimore, New York, and North Carolina. HTN was defined as systolic or diastolic blood pressure ≥140 or 90 mm Hg, or taking antihypertensive medications. Individual-level chronic stress was measured by self-reported chronic burden and perceived major and everyday discrimination. A measure of neighborhood (census tract) chronic stressors (i.e., physical disorder, violence) was developed using data from a telephone survey conducted with other residents of MESA neighborhoods. Binomial regression was used to estimate associations between HTN and race/ethnicity before and after adjustment for individual and neighborhood stressors.

RESULTS:

The prevalence of HTN was 59.5% in African Americans (AAs), 43.9% in Hispanics, and 42.0% in whites. Age- and sex-adjusted relative prevalences of HTN (compared to whites) were 1.30 (95% confidence interval (CI): 1.22-1.38) for AA and 1.16 (95% CI: 1.04-1.31) for Hispanics. Adjustment for neighborhood stressors reduced these to 1.17 (95% CI: 1.11-1.22) and 1.09 (95% CI: 1.00-1.18), respectively. Additional adjustment for individual-level stressors, acculturation, income, education, and other neighborhood features only slightly reduced these associations.

CONCLUSION:

Neighborhood chronic stressors may contribute to race/ethnic differences in HTN prevalence in the United States.

PMID:
20847728
PMCID:
PMC3319083
DOI:
10.1038/ajh.2010.200
[Indexed for MEDLINE]
Free PMC Article

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