Journal
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Volume 18, Issue 4, Pages 576-585Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-010-0399-7
Keywords
Stroke; Hypertension; Hazardous waste; Persistent organic pollutants
Categories
Funding
- Ohio University
- Fogarty International Center, National Institutes of Health [TW000636]
- Institute for Health and the Environment
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Purpose Recent evidence indicates that exposure to persistent organic pollutants (POPs) is emerging as an important risk factor for atherosclerosis-related diseases, including stroke. Hypertension (HTN) is a major risk factor for stroke, and some studies suggest that exposure to POPs is also a risk factor for HTN. We hypothesized that POPs increase the environmental burden of stroke with comorbid HTN. Methods A population-based study of hospitalization rates for stroke with comorbid HTN in populations presumably exposed to POPs, based on the zip code of residence, was conducted. Data on hospitalizations for stroke with comorbid HTN were obtained from the New York Statewide Planning and Research Cooperative System for 1993-2004. Relative risks, with 95% confidence intervals (RR, 95% CI), of hospitalization were estimated by multiple Poisson regression analysis. Results RR of hospitalization for stroke with comorbid HTN was 13.4% higher in populations residing in zip codes containing or abutting environmental sources of POPs (RR = 1.134; 95% CI, 1.036-1.241; p = 0.006). Also, hospitalization rates were significantly higher in males than in females (RR = 1.397; 95% CI, 1.357-1.437; p < 0.001), in African Americans than in Caucasians (RR = 3.902; 95% CI, 3.617-4.208; p < 0.001), and in older age groups (p for trend < 0.001). These statistically significant findings of the effect of demographic factors are highly consistent with the current knowledge of stroke and serve as indirect quality indicators for our model. Conclusions Results of our study support the hypothesis that exposure to POPs increases the environmental burden of both stroke and HTN.
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