Rainfall-Associated Bronchospasm Epidemics: The Epidemiological Effects of Air Pollutants and Weather Variables
Joint Authors
Dastoorpoor, Maryam
Ebrahimzadeh, Pegah
Aghababaeian, Hamidreza
Forouzan, Arash
Haddadzadeh Shoushtari, Maryam
Asgari Darian, Ali
Masoumi, Kambiz
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-09-27
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Background.
This study compares different risk factors in patients visiting a hospital during five rainfall-associated bronchospasm epidemics in Ahvaz and those visiting on other occasions.
Methods.
This case-control study was conducted on 5307 patients with bronchospasm admitted to the Emergency Department of Imam Khomeini Hospital in Ahvaz (Iran) from late October to December (as the epidemic) and 916 patients admitted from late January to March (as the nonepidemic) in 2011 to 2015.
Results.
A total of the 41.7% of the cases and 48.8% of the controls had episodes of bronchospasm, suggesting a significant difference between the two groups (P<0.001).
The mean concentrations of PM10, NO, NO2, and NOx pollutants (except O3) were significantly higher in the nonepidemic periods (P<0.05).
The adjusted analysis showed a direct significant relationship between emergency respiratory admissions and each unit of increase in NO and SO2 concentration during the epidemic periods and NO2 concentration during the nonepidemic periods.
During the epidemic periods, a direct and significant relationship was also observed between respiratory admissions and each unit of increase in relative humidity and evaporation.
Conclusion.
The results suggest that certain pollutants and weather variables are associated with the risk of emergency respiratory admissions during epidemic periods.
American Psychological Association (APA)
Masoumi, Kambiz& Haddadzadeh Shoushtari, Maryam& Forouzan, Arash& Asgari Darian, Ali& Dastoorpoor, Maryam& Ebrahimzadeh, Pegah…[et al.]. 2017. Rainfall-Associated Bronchospasm Epidemics: The Epidemiological Effects of Air Pollutants and Weather Variables. Canadian Respiratory Journal،Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1150930
Modern Language Association (MLA)
Masoumi, Kambiz…[et al.]. Rainfall-Associated Bronchospasm Epidemics: The Epidemiological Effects of Air Pollutants and Weather Variables. Canadian Respiratory Journal No. 2017 (2017), pp.1-12.
https://search.emarefa.net/detail/BIM-1150930
American Medical Association (AMA)
Masoumi, Kambiz& Haddadzadeh Shoushtari, Maryam& Forouzan, Arash& Asgari Darian, Ali& Dastoorpoor, Maryam& Ebrahimzadeh, Pegah…[et al.]. Rainfall-Associated Bronchospasm Epidemics: The Epidemiological Effects of Air Pollutants and Weather Variables. Canadian Respiratory Journal. 2017. Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1150930
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1150930