Short-Term Effects of Coarse Particulate Matter on Hospital Admissions for Cardiovascular Diseases

A Case-Crossover Study in a Tropical City

Ying Chen Chen, Yi Hao Weng, Ya Wen Chiu, Chun Yuh Yang

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

This study was undertaken to determine whether there was an association between coarse particles (PM2.5-10) levels and frequency of hospital admissions for cardiovascular diseases (CVD) in Kaohsiung, Taiwan. Hospital admissions for CVD, including ischemic heart disease (IHD), stroke, congestive heart failure (CHF), and arrhythmias, and ambient air pollution data levels for Kaohsiung were obtained for the period 2006-2010. The relative risk of hospital admissions for CVD 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 rates of admissions for CVD were significantly associated with higher coarse PM levels only on cool days (<25°C), with a 10-μg/m3 elevation in PM2.5-10 concentrations associated with a 3% (95% CI = 2-4%) rise in IHD admissions, 5% (95% CI = 4-6%) increase in stroke admissions, 3% (95% CI = 1-6%) elevation in CHF admissions,and 3% (95% CI = 0-6%) rise in arrhythmias admissions. No significant associations were found between coarse particle levels and number of hospital admissions for CVD on warm days. In the two-pollutant models, PM2.5-10 levels remained significantly correlated with higher rate of CVD admissions even controlling for sulfur dioxide, nitrogen dioxide, carbon monoxide, or ozone on cool days. Compared to the effect estimate associated with a 10-μg/m3 increase in PM2.5 levels, effect estimates of frequency of CVD-related admissions associated with a 10-μg/m3 rise in coarse PM levels were weaker. This study provides evidence that higher levels of PM2.5-10 enhance the risk of hospital admissions for CVD.

Original languageEnglish
Pages (from-to)1241-1253
Number of pages13
JournalJournal of Toxicology and Environmental Health - Part A
Volume78
Issue number19
DOIs
Publication statusPublished - Oct 2 2015

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Particulate Matter
Cross-Over Studies
Cardiovascular Diseases
Myocardial Ischemia
Cardiac Arrhythmias
Heart Failure
Stroke
Nitrogen Dioxide
Sulfur Dioxide
Ozone
Air Pollution
Weather
Carbon Monoxide
Taiwan
Air pollution

ASJC Scopus subject areas

  • Health, Toxicology and Mutagenesis
  • Toxicology

Cite this

Short-Term Effects of Coarse Particulate Matter on Hospital Admissions for Cardiovascular Diseases : A Case-Crossover Study in a Tropical City. / Chen, Ying Chen; Weng, Yi Hao; Chiu, Ya Wen; Yang, Chun Yuh.

In: Journal of Toxicology and Environmental Health - Part A, Vol. 78, No. 19, 02.10.2015, p. 1241-1253.

Research output: Contribution to journalArticle

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