title: Fine particulate air pollution and hospital admissions for congestive heart failure: a case-crossover study in Taipei.
abstract: This study was undertaken to determine whether there was an association between fine particles (PM₂.₅) levels and hospital admissions for congestive heart failure (CHF) in Taipei, Taiwan. Hospital admissions for CHF and ambient air pollution data for Taipei were obtained for the period 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 CHF admissions were significantly associated with PM₂.₅ both on warm days (>23 °C) and cool days (<23 °C), with an interquartile range increase associated with a 13% (95% CI = 9-17%) and 3% (95% CI = 0-7%) increase in CHF admissions, respectively. In the two-pollutant models, PM₂.₅ remained significant after the inclusion of SO₂ or O₃ both on warm and cool days. This study provides evidence that higher levels of PM₂.₅ increase the risk of hospital admissions for CHF.
authors.affiliation: Department of Public Health, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan.
authors.forename: Ya-Lun
authors.initials: YL
authors.lastname: Hsieh
authors.forename: Shang-Shyue
authors.initials: SS
authors.lastname: Tsai
authors.forename: Chun-Yuh
authors.initials: CY
authors.lastname: Yang
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000032:analysis; D002248:Carbon Monoxide / Q000032:analysis; D002947:Cities; D006333:Heart Failure / Q000453:epidemiology*; D006760:Hospitalization / Q000706:statistics & numerical data*; D006801:Humans; D016017:Odds Ratio; D010126:Ozone / Q000032:analysis; D052638:Particulate Matter / Q000032:analysis*; D013458:Sulfur Dioxide / Q000032:analysis; D013624:Taiwan / Q000453:epidemiology
chemical_list: D000393:Air Pollutants; D052638:Particulate Matter; D013458:Sulfur Dioxide; D010126:Ozone; D002248:Carbon Monoxide