TY - JOUR
T1 - Fine particulate air pollution and outpatient department visits for headache in Taipei, Taiwan
AU - Chang, Chih Ching
AU - Chiu, Hui Fen
AU - Yang, Chun Yuh
N1 - Funding Information:
This study is based in part on data from the National Insurance Research Database provided by the Bureau of National Health Insurance, Department of Health, and managed by National Health Research Institutes. The interpretation and conclusions contained herein do not represent those of Bureau of National Health Insurance, Department of Health, or the National Health Research Institutes. This study was supported by a grant from the National Science Council, Executive Yuan, Taiwan (NSC 102-2314-B-037-065-MY2).
Publisher Copyright:
© Taylor & Francis Group, LLC.
PY - 2015/4/18
Y1 - 2015/4/18
N2 - This study was undertaken to determine whether there was an association between fine particle matter (PM2.5) levels and daily outpatient department visits (OPD) for headaches in Taipei, Taiwan. Daily OPD visits for headaches and ambient air pollution data for Taipei were obtained for the period 2006-2011. The relative risk of visits for OPD headaches 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 OPD visits for headaches were significantly associated with levels of PM2.5 both on warm days (>23°C) and cool days (<23°C), with an interquartile range rise associated with a 12% (95% CI = 10-14%) and 3% (95% CI = 1-5%) elevation in OPD visits for headaches, respectively. In the two-pollutant models, PM2.5 remained significant after inclusion of sulfur dioxide (SO2) or ozone (O3) on both warm and cool days. This study provides evidence that higher levels of PM2.5 increase the risk of OPD visits for headaches in Taipei, Taiwan.
AB - This study was undertaken to determine whether there was an association between fine particle matter (PM2.5) levels and daily outpatient department visits (OPD) for headaches in Taipei, Taiwan. Daily OPD visits for headaches and ambient air pollution data for Taipei were obtained for the period 2006-2011. The relative risk of visits for OPD headaches 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 OPD visits for headaches were significantly associated with levels of PM2.5 both on warm days (>23°C) and cool days (<23°C), with an interquartile range rise associated with a 12% (95% CI = 10-14%) and 3% (95% CI = 1-5%) elevation in OPD visits for headaches, respectively. In the two-pollutant models, PM2.5 remained significant after inclusion of sulfur dioxide (SO2) or ozone (O3) on both warm and cool days. This study provides evidence that higher levels of PM2.5 increase the risk of OPD visits for headaches in Taipei, Taiwan.
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U2 - 10.1080/15287394.2015.1010465
DO - 10.1080/15287394.2015.1010465
M3 - Article
C2 - 25849767
AN - SCOPUS:84927604155
SN - 1528-7394
VL - 78
SP - 506
EP - 515
JO - Journal of Toxicology and Environmental Health - Part A: Current Issues
JF - Journal of Toxicology and Environmental Health - Part A: Current Issues
IS - 8
ER -