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Short-term Effects of Ambient Air Pollution on Emergency Department Visits for Asthma: An Assessment of Effect Modification by Prior Allergic Disease History

Authors
 Juhwan Noh  ;  Jungwoo Sohn  ;  Jaelim Cho  ;  Seong-Kyung Cho  ;  Yoon Jung Choi  ;  Changsoo Kim  ;  Dong Chun Shin 
Citation
 Journal of Preventive Medicine and Public Health, Vol.49(5) : 329-341, 2016 
Journal Title
 Journal of Preventive Medicine and Public Health 
ISSN
 1975-8375 
Issue Date
2016
MeSH
Adolescent ; Adult ; Age Factors ; Aged ; Air Pollutants/analysis ; Air Pollutants/toxicity* ; Asthma/diagnosis* ; Asthma/etiology ; Child ; Child, Preschool ; Databases, Factual ; Dermatitis, Atopic/pathology ; Emergency Service, Hospital ; Female ; Humans ; Infant ; Male ; Middle Aged ; Ozone/toxicity ; Particulate Matter/analysis ; Particulate Matter/toxicity ; Rhinitis, Allergic/pathology ; Risk ; Seasons ; Sex Factors ; Young Adult
Keywords
Air pollution ; Asthma ; Effect modifier ; Emergencies ; Korea ; Time series analysis
Abstract
Objectives : The goal of this study was to investigate the short-term effect of ambient air pollution on emergency department (ED) visits in Seoul for asthma according to patients’ prior history of allergic diseases. Methods : Data on ED visits from 2005 to 2009 were obtained from the Health Insurance Review and Assessment Service. To evaluate the risk of ED visits for asthma related to ambient air pollutants (carbon monoxide [CO], nitrogen dioxide [NO2], ozone [O3], sulfur dioxide [SO2], and particulate matter with an aerodynamic diameter <10 μm [PM10]), a generalized additive model with a Poisson distribution was used; a single-lag model and a cumulative-effect model (average concentration over the previous 1-7 days) were also explored. The percent increase and 95% confidence interval (CI) were calculated for each interquartile range (IQR) increment in the concentration of each air pollutant. Subgroup analyses were done by age, gender, the presence of allergic disease, and season. Results : A total of 33 751 asthma attack cases were observed during the study period. The strongest association was a 9.6% increase (95% CI, 6.9% to 12.3%) in the risk of ED visits for asthma per IQR increase in O3 concentration. IQR changes in NO2 and PM10 concentrations were also significantly associated with ED visits in the cumulative lag 7 model. Among patients with a prior history of allergic rhinitis or atopic dermatitis, the risk of ED visits for asthma per IQR increase in PM10 concentration was higher (3.9%; 95% CI, 1.2% to 6.7%) than in patients with no such history. Conclusions : Ambient air pollutants were positively associated with ED visits for asthma, especially among subjects with a prior history of allergic rhinitis or atopic dermatitis.
Files in This Item:
T201604028.pdf Download
DOI
10.3961/jpmph.16.038
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Preventive Medicine and Public Health (예방의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Chang Soo(김창수) ORCID logo https://orcid.org/0000-0002-5940-5649
Noh, Juhwan(노주환) ORCID logo https://orcid.org/0000-0003-0657-0082
Sohn, Jung Woo(손정우)
Shin, Dong Chun(신동천) ORCID logo https://orcid.org/0000-0003-4252-2280
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/152284
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