Passive Smoking and the Risk of Coronary Heart Disease — A Meta-Analysis of Epidemiologic Studies
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Discussion
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Implication
Meta-analysis reveals a significant increase in coronary heart disease risk among nonsmokers exposed to passive smoking, highlighting public health concerns.
Key Points
- To assess the association between passive smoking and the risk of coronary heart disease among nonsmokers.
- Conducted a meta-analysis of 18 epidemiologic studies (10 cohort and 8 case-control)
- Searched Medline and Dissertation Abstracts Online for relevant studies
- Abstracted data on study designs, subject characteristics, exposure measures, and risk estimates
- Nonsmokers exposed to environmental smoke had a relative risk of coronary heart disease of 1.25 (95% CI, 1.17 to 1.32)
- Cohort studies showed a relative risk of 1.21 (95% CI, 1.14 to 1.30) for passive smoking
- Case-control studies indicated a relative risk of 1.51 (95% CI, 1.26 to 1.81) for passive smoking
Cite This Study
He et al. (1999) studied this question.