Short-Term Effects of Fine Particulate Air Pollution on Ischemic Heart Disease Hospitalizations in Taipei: A Case-Crossover Study

Received: January 16, 2013
Revised: April 24, 2013
Accepted: April 24, 2013
Download Citation: RIS|BibTeX|https://doi.org/10.4209/aaqr.2013.01.0013  

Cite this article:
Chiu, H.F., Peng, C.Y., Wu, T.N. and Yang, C.Y. (2013). Short-Term Effects of Fine Particulate Air Pollution on Ischemic Heart Disease Hospitalizations in Taipei: A Case-Crossover Study. Aerosol Air Qual. Res. 13: 1563-1569. https://doi.org/10.4209/aaqr.2013.01.0013

ABSTRACT

This study was undertaken to determine whether there was a correlation between fine particles (PM_2.5) levels and hospital admissions for ischemic heart disease (IHD) in Taipei, Taiwan. Hospital admissions for IHD and ambient air pollution data for Taipei were obtained for the period from 2006–2010. The relative risk of hospital admissions was estimated using a case-crossover approach, controlling for weather variables, day of the week, seasonality, and long-term time trends. For the single pollutant model (without adjustment for other pollutants), increased IHD admissions were significantly associated with PM_2.5 on both warm (> 23°C) and cool days (< 23°C), with an interquartile range increase associated with a 12% (95% CI = 10%–14%) and 4% (95% CI = 2%–6%) increase in IHD admissions, respectively. In the two-pollutant models, PM_2.5 remained significant after the inclusion of SO₂ or O₃ both on warm and cool days. This study provides evidence that higher levels of PM_2.5 increase the risk of hospital admissions for IHD.

Keywords: Fine particulate; Air pollution; Hospital admissions; Ischemic heart disease; Case-crossover