Fine Particulate Air Pollution and Hospital Admissions for Chronic Obstructive Pulmonary Disease: A Case-Crossover Study in Taipei

Shang-Shyue Tsai, Chih-Ching Chang and Chun-Yuh Yang
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Shang-Shyue Tsai: Department of Healthcare Administration, I-Shou University, Kaohsiung 824, Taiwan
Chih-Ching Chang: Department of Environmental and Occupational Health, National Cheng Kung University, Tainan 701, Taiwan
Chun-Yuh Yang: Department of Public Health, College of Health Sciences, Kaohsiung Medical University, Kaohsiung 807, Taiwan

IJERPH, 2013, vol. 10, issue 11, 1-12

Abstract: We undertook this study to investigate whether there is an association between atmospheric fine particles (PM 2.5 ) levels and inpatient admissions for chronic obstructive pulmonary disease (COPD) in Taipei, Taiwan. Data on inpatient admissions for COPD and ambient on air pollution levels in Taipei were obtained for years 2006 to 2010. We estimated the relative risk of inpatient admissions for COPD using a case-crossover design with the following control variables: weather measures, day of the week, seasonality, and long-term time trends. For the single-pollutant model (not controlling for other atmospheric pollutants), COPD admissions were significantly and positively associated with higher PM 2.5 levels during both warm days (>23 °C) and cool days (<23 °C), with an interquartile range increase of 12% (95% CI = 8–16%) and 3% (95% CI = 0–7%) in COPD admissions, respectively. In the two-pollutant models, PM 2.5 remained significant even controlling for SO 2 or O 3 on both warm and cool days. Taken as a whole, our study demonstrates that higher levels of PM 2.5 may increase the risk of inpatient admissions for COPD.

Keywords: fine particulate; air pollution; COPD; case-crossover; hospital admissions (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2013
References: View complete reference list from CitEc
Citations: View citations in EconPapers (9)

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