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Open AccessArticle

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

1
Department of Healthcare Administration, I-Shou University, Kaohsiung 824, Taiwan
2
Department of Environmental and Occupational Health, National Cheng Kung University, Tainan 701, Taiwan
3
Department of Public Health, College of Health Sciences, Kaohsiung Medical University, Kaohsiung 807, Taiwan
4
Division of Environmental Health and Occupational Medicine, National Health Research Institute, Miaoli 350, Taiwan
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2013, 10(11), 6015-6026; https://doi.org/10.3390/ijerph10116015
Received: 4 September 2013 / Revised: 31 October 2013 / Accepted: 5 November 2013 / Published: 11 November 2013
We undertook this study to investigate whether there is an association between atmospheric fine particles (PM2.5) 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 PM2.5 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, PM2.5 remained significant even controlling for SO2 or O3 on both warm and cool days. Taken as a whole, our study demonstrates that higher levels of PM2.5 may increase the risk of inpatient admissions for COPD. View Full-Text
Keywords: fine particulate; air pollution; COPD; case-crossover; hospital admissions fine particulate; air pollution; COPD; case-crossover; hospital admissions
MDPI and ACS Style

Tsai, S.-S.; Chang, C.-C.; Yang, C.-Y. Fine Particulate Air Pollution and Hospital Admissions for Chronic Obstructive Pulmonary Disease: A Case-Crossover Study in Taipei. Int. J. Environ. Res. Public Health 2013, 10, 6015-6026.

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