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International Archives of Occupational and Environmental Health

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01.08.2007 | Original Article

Air pollution, socioeconomic position, and emergency hospital visits for asthma in Seoul, Korea

verfasst von: Sun-Young Kim, Marie S. O’Neill, Jong-Tae Lee, Youngtae Cho, Jaiyong Kim, Ho Kim

Erschienen in: International Archives of Occupational and Environmental Health | Ausgabe 8/2007

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Abstract

Objective

Some epidemiological literature has observed that air pollution effects on health differed across regional or individual socioeconomic position. This study evaluated whether regional and individual socioeconomic position, as indicated by health insurance premiums, modified the effect of air pollution on hospital visits for asthma.

Methods

Effects of ambient air pollutants (particulate matter, carbon monoxide, sulfur dioxide, nitrogen dioxide, and ozone) on 92,535 emergency out-patient hospital visits for asthma in Seoul, Korea during 2002 were estimated using case-crossover analysis, adjusting for time trend, weather conditions, and seasonality. Next, interactions between air pollutants and Korean National Health Insurance premium (1) for the individual patient and (2) averaged across the patient’s residence district, were entered, first singly then jointly, in the models.

Results

Relative risks of emergency outpatient hospital visits were all positively and significantly associated with interquartile increases for selected lags for all air pollutants. In the regression model with interaction terms for both individual premium and regional-average premium, associations with all five-air pollutants ranged from 1.03 to 1.09 times higher among the lowest premium districts compared to the highest premium districts. Of all the pollutants, nitrogen dioxide showed the strongest associations in lower premium districts compared to the higher premium districts. Individual socioeconomic position did not modify the associations in either the single or joint interaction models.

Conclusion

In Seoul, community but not individual socioeconomic conditions modified risk of asthma hospital visits on high air pollution days.

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Titel: Air pollution, socioeconomic position, and emergency hospital visits for asthma in Seoul, Korea
verfasst von: Sun-Young Kim
Marie S. O’Neill
Jong-Tae Lee
Youngtae Cho
Jaiyong Kim
Ho Kim
Publikationsdatum: 01.08.2007
Verlag: Springer-Verlag
Erschienen in: International Archives of Occupational and Environmental Health / Ausgabe 8/2007
Print ISSN: 0340-0131
Elektronische ISSN: 1432-1246
DOI: https://doi.org/10.1007/s00420-007-0182-3

Springer Medizin

Abstract

Objective

Methods

Results

Conclusion

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