Journal of Preventive Medicine and Public Health

The Korean Society for Preventive Medicine (대한예방의학회)
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Short-term Effect of Air Pollution on Respiratory Disease in Seoul : A Case-Crossover Study

서울지역 대기오염이 호흡기계질환에 미치는 단기영향에 관한 환자교차연구

  • Lee, Young-Ju (Department of Preventive Medicine, Seoul National University College of Medicine and Institute of Environmental Medicine, SNUMRC) ;
  • Lee, Jong-Tae (Institute of Environmental and Industrial Medicine, Hanyang University) ;
  • Shin, Dong-Chun (Department of Preventive Medicine & Public Health, Yonsei University College of Medicine) ;
  • Im, Hyoung-June (Department of Preventive Medicine, Seoul National University College of Medicine and Institute of Environmental Medicine, SNUMRC) ;
  • Cho, Soo-Hun (Department of Preventive Medicine, Seoul National University College of Medicine and Institute of Environmental Medicine, SNUMRC) ;
  • Ju, Young-Su (Department of Occupational and Environmental Medicine, Hallym University Sacred Heart Hospital)
  • 이영주 (서울대학교 의과대학 예방의학교실 및 의학연구원 환경의학연구소) ;
  • 이종태 (한양대학교 환경 및 산업의학연구소) ;
  • 신동천 (연세대학교 의과대학 예방의학교실) ;
  • 임형준 (서울대학교 의과대학 예방의학교실 및 의학연구원 환경의학연구소) ;
  • 조수헌 (서울대학교 의과대학 예방의학교실 및 의학연구원 환경의학연구소) ;
  • 주영수 (한림대학교 성심병원 산업의학과)
  • Published : 2001.09.01
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Abstract

Objectives : To evaluate the hypothesis that air pollution could increase emergency room visits for respiratory diseases, and if so, to quantify the strength of association between those. Methods : We compiled daily records of hospital emergency room visits for respiratory diseases in Seoul, from November 1. 1955 to October 31. 1996, by using medical utilization data of unscheduled visits. In addition, air quality and weather data for the same period was collected. And a case-crossover design was applied by adopting conditional logistic regression analysis to determine the relationship between air pollutants and emergency room visits for respiratory diseases. In particular, the control periods were chosen by a bidirectional paired matching technique 7, 14, and 21 days before and after the case periods. Results : Only ozone was associated with the increased number of emergency room visits for respiratory diseases. The relative risk according to a 30ppb increase of ozone concentration (24hr mean, lagged 1day) was 1.91(95% confidence interval = 1.78-2.05). Conclusion : There was a statistically significant association between the ambient ozone and daily emergency room visits for respiratory diseases.

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