期刊
ENVIRONMENTAL HEALTH PERSPECTIVES
卷 115, 期 1, 页码 53-57出版社
US DEPT HEALTH HUMAN SCIENCES PUBLIC HEALTH SCIENCE
DOI: 10.1289/ehp.9587
关键词
air pollution; case-control studies; myocardial infarction; vehicle emissions
资金
- NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES [R01ES011636, T32ES007155] Funding Source: NIH RePORTER
- NIEHS NIH HHS [R01 ES011636, T32 ES007155, T32 ES07155] Funding Source: Medline
BACKGROUND: Long-term exposure to particulate air pollution has been associated with an increased risk of dying from cardiopulmonary and ischemic heart disease, yet few studies have evaluated cardiovascular end points other than mortality. We investigated the relationship between long-term exposure to traffic and occurrence of acute myocardial infarction (AMI) in a case-control study. METHODS: A total of 5,049 confirmed cases of AMI were identified between 1995 and 2003 as part of the Worcester Heart Attack Study, a community-wide study examining changes over time in the incidence of AMI among greater Worcester, Massachusetts, residents. Population controls were selected from Massachusetts resident lists. We used cumulative traffic within 100 in of subjects' residence and distance from major roadway as proxies for exposure to traffic-related air pollution. We estimated the relationship between exposure to traffic and occurrence of AMI using logistic regression, and we adjusted for the following potential confounders: age, sex, section of the study area, point sources emissions of particulate matter with aerodynamic diameter < 2.5 mu m, area socioeconomic characteristics, and percentage of open space. RESULTS: An increase in cumulative traffic near the home was associated with a 4% increase in the odds of AMI per interquartile range [95% confidence interval (Cl), 2-7%], whereas living near a major roadway was associated with a 5% increase in the odds of AMI per kilometer (95% Cl, 3-6%). CONCLUSIONS: These results provide support for an association between long-term exposure to traffic and the risk of AMI.
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