Key result
Short-term PM2.5 linked to ~940 CNY higher MI hospitalization costs per 10 μg/m³.
Why the study?
Myocardial infarction is a leading cause of global disability and death, and while the link between PM2.5 and MI has gained attention, its impact on hospitalization costs remained to be evaluated.
Does short-term exposure to ambient PM2.5 increase hospitalization costs in patients with myocardial infarction?
Observational
Does short-term exposure to ambient PM2.5 increase hospitalization costs in patients with myocardial infarction?
Mean Difference: 940.05 (95% CI 141.87–1463.23)
Short-term exposure to ambient PM2.5 is associated with increased hospitalization costs for myocardial infarction, particularly in males, younger patients, and those with hyperlipidemia.
Myocardial infarction (MI) ranks as one of the primary causes of global disabilities and disease deaths. The association between fine particulate matter (PM2.5) and MI has gained attention in recent years. In this study, we assessed the relationship between short-term PM2.5 exposure and MI inpatient hospitalization costs using multiple linear regression, and estimated the attributable MI burden. Stratified analyses were done by gender, age, season, and hyperlipidemia. The economic burden of PM2.5 was assessed using WHO (25 μg/m³) and China's (75 μg/m³) criteria. PM2.5 concentration positively correlated with MI hospitalization costs. A 10 μg/m³ increase in Lag015 PM2.5 led to a 940.05 CNY (95% CI: 141.87-1463.23) increase in costs. Furthermore, the association was stronger in males, those <65 years old, and patients with hyperlipidemia. This study first indicates that short-term PM2.5 levels can be positively associated with MI's economic burden, especially in cool seasons.
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Wang et al. (2025) conducted an observational in Myocardial infarction. Short-term PM2.5 exposure was evaluated on MI inpatient hospitalization costs (940.05 CNY increase per 10 μg/m³ increase, 95% CI 141.87-1463.23). A 10 μg/m³ increase in short-term PM2.5 exposure was associated with a 940.05 CNY increase (95% CI 141.87-1463.23) in inpatient hospitalization costs for patients with myocardial infarction.
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