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Short-, Mid-, and Long-Term Associations Between PM2.5 and Stroke Incidence in Taiwan
Chun-Pai Yang1, Chung-Yi Li, Winn-Jung Huang
1From the Department of Neurology (Dr Yang); Department of Medical Research (Dr Yang, Ms Lu, Dr Yan), Kuang Tien General Hospital, Taichung, Taiwan; Institute of Biomedical Nutrition, Hung Kuang University, Taichung, Taiwan (Dr Yang, Dr Yan); Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan (Dr Li); Department of Public Health, College of Public Health, China Medical University, Taichung, Taiwan (Dr Li); Department of Safety, Health, and Environmental Engineering, Hung Kuang University, Taichung, Taiwan (Dr Huang); Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei, Taiwan (Dr Yu); Department of Healthcare Administration, Asia University, Taichung, Taiwan (Dr Yang); Institute of Hospital and Health Care Administration, National Yang-Ming University, Taipei, Taiwan (Dr Lang); National Yang Ming Chiao Tung University, Taipei, Taiwan (Dr Lang); Department of Endocrinology and Metabolism, Kuang Tien General Hospital, Taichung, Taiwan (Dr Yan).
Exposure to fine particulate matter (PM2.5) is linked to increased ischemic stroke risk. This study confirms significant short, medium, and long-term associations, supporting PM2.5 as a stroke risk factor.
Area of Science:
- Environmental Health
- Epidemiology
- Cardiovascular Research
Background:
- Particulate matter (PM2.5) exposure is a growing public health concern.
- Air pollution's impact on cardiovascular events, including stroke, requires further investigation.
- Understanding the temporal relationship between PM2.5 and stroke is crucial for risk assessment.
Purpose of the Study:
- To examine the association between exposure to fine particulate matter (PM2.5) and the risk of ischemic stroke.
- To evaluate these associations across different exposure durations (short-term, medium-term, and long-term).
Main Methods:
- A nationwide population-based case-control study design was employed.
- 10,035 incident ischemic stroke cases were matched with two controls each.
- Multiple logistic regression models, adjusted for confounders, were used to assess PM2.5 exposure and stroke incidence.
Main Results:
- Significant associations were found between PM2.5 exposure and ischemic stroke incidence.
- These relationships were evident across short-term, medium-term, and long-term exposure periods.
- The findings indicate a consistent link between PM2.5 levels and stroke risk.
Conclusions:
- This study reinforces the role of PM2.5 as a significant risk factor for ischemic stroke.
- Evidence supports the inclusion of PM2.5 exposure in stroke risk models.
- Public health strategies should consider air quality interventions to mitigate stroke burden.
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