title: Air pollution and hospital admissions for myocardial infarction in a subtropical city: Taipei, Taiwan.
abstract: This study was undertaken to determine whether there was a correlation between air pollutant levels and hospital admissions for myocardial infarction (MI) in Taipei, Taiwan. Hospital admissions for MI and ambient air pollution data for Taipei were obtained for the period 1996-2006. 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. In the single-pollutant models, on warm days (>23 degrees C) statistically significant positive associations were found for all pollutants except sulfur dioxide (SO(2)). On cool days (<23 degrees C), all pollutants were significantly associated with increased MI admissions except SO(2). For the two-pollutant model, ozone (O(3)) and nitrogen dioxide (NO(2)) were significant in combination with each of the other four pollutants both on warm and cool days for higher admissions for MI. This study provides evidence that higher levels of ambient air pollutants increase the risk of hospital admissions for MI.
authors.affiliation: Institute of Occupational Safety and Health, College of Health Sciences, Kaohsiung Medical University, Kaohsiung.
authors.forename: Ya-Lun
authors.initials: YL
authors.lastname: Hsieh
authors.forename: Ya-Hui
authors.initials: YH
authors.lastname: Yang
authors.forename: Trong-Neng
authors.initials: TN
authors.lastname: Wu
authors.forename: Chun-Yuh
authors.initials: CY
authors.lastname: Yang
mesh_terms: D000393:Air Pollutants / Q000009:adverse effects* / Q000032:analysis; D000397:Air Pollution / Q000009:adverse effects* / Q000032:analysis; D004784:Environmental Monitoring; D062665:Epidemiological Monitoring; D006760:Hospitalization / Q000706:statistics & numerical data*; D006801:Humans; D009203:Myocardial Infarction / Q000453:epidemiology* / Q000209:etiology; D010316:Particle Size; D052638:Particulate Matter / Q000009:adverse effects* / Q000032:analysis; D013624:Taiwan / Q000453:epidemiology; D013696:Temperature; D014329:Tropical Climate
chemical_list: D000393:Air Pollutants; D052638:Particulate Matter