Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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Age Dependencies in Air Pollution-associated Asthma Hospitalization

PM10과 오존이 연령군별 천식 입원에 미치는 영향

  • Bae, Hyun-Joo (Korea Environment Institute) ;
  • Ha, Jong-Sik (Korea Environment Institute) ;
  • Lee, Ae-Kyung (Institute for National Health Insurance, National Health Insurance Corporation) ;
  • Park, Jeong-Im (Department of Environmental Health Sciences, Soon Chun Hyang University)
  • 배현주 (한국환경정책.평가연구원) ;
  • 하종식 (한국환경정책.평가연구원) ;
  • 이애경 (국민건강보험공단 건강보험연구원) ;
  • 박정임 (순천향대학교 환경보건학과)
  • Published : 2008.04.30
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Abstract

This study investigated the age dependencies in ambient air pollution-associated asthma hospitalization from 2003 to 2005 in Seoul. For all ages and the age groups of 0-14, 15-64, and 65+years, the Generalized Additive Model (GAM) was used to estimate the relative risks of daily asthma hospitalization associated with changes in particulate matter and ozone. The time-trends, seasonal variances, day effects, temperature, humidity, and pressure at sea level were controlled in the models. Significant associations were observed between asthma hospitalization and the levels of $PM_{10}$ and $O_3$. The relative risks (RRs) of asthma hospitalization for every 10 unit increases in $PM_{10}({\mu}g/m^3)$ and $O_3$(ppb) were 1.008 (95% CI 1.005-1.012), and 1.012 (95% CI 1.003-1.020), respectively. Evaluated over $10\;{\mu}g/m^3$ increase in $PM_{10}$, we found the relative risks of asthma hospitalization to be 1.009 (95% CI 1.004-1.014) in 0-14 age group, and 1.015 (95% CI 1.008-1.022) in 65+ age group. Considering 10 ppb increase in $O_3$, those were 1.014 (95% CI 1.003-1.024) in 0-14 age group, and 1.025 (95% CI 1.009-1.041) in 65+ age group. It was concluded that current levels of ambient air pollution in Seoul make a significant contribution to the variation in daily asthma hospitalization. Further reduction in air pollution is necessary to protect the health of the community, especially that of the higher risky groups including children and elderly population.

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References

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