Fine particulate air pollution and outpatient department visits for headache in Taipei, Taiwan

Chih-Ching Chang, Hui Fen Chiu, Chun Yuh Yang

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)506-515
Number of pages10
JournalJournal of Toxicology and Environmental Health - Part A: Current Issues
Volume78
Issue number8
DOIs
Publication statusPublished - 2015 Apr 18

All Science Journal Classification (ASJC) codes

  • Toxicology
  • Health, Toxicology and Mutagenesis

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