Ambient air pollution and daily emergency department visits for asthma in Edmonton, Canada

Szyszkowicz, M

HERO ID

180036

Reference Type

Journal Article

Year

2008

Language

English

PMID

18468973

HERO ID 180036
In Press No
Year 2008
Title Ambient air pollution and daily emergency department visits for asthma in Edmonton, Canada
Authors Szyszkowicz, M
Journal International Journal of Occupational Medicine and Environmental Health
Volume 21
Issue 1
Page Numbers 25-30
Abstract Objectives: As demonstrated by many studies, emergency department (ED) visits for asthma can be associated with air pollution exposures. The aim of this study was to examine and assess the potential relations between ED visits for asthma and the concentrations of ambient air pollutants. Materials and Methods: Generalized linear mixed model was applied to study 62,563 ED visits for asthma (ICD-9: 493) in Edmonton, Canada. Two age groups, with 10 years of age as a separator, were considered by gender and season of the year: all (I–XII), warm (IV–IX) and cold (X–III). Results: The percentage increase in daily ED visits for asthma was 17.8% (95% CI: 7.1–29.5) and 13.8% (95% CI: 3.3–25.3) for females below 10 years of age, in the period of IV–IX, for current day and 1-day lagged exposure to ozone (O3), respectively. The percentage increase was 19.2% (95% CI: 11.4–27.6) for males below 10 years of age, in the period of IV–IX, for 2-day lagged exposure to nitrogen dioxide (NO2). Conclusions: The fi ndings provide support for the hypothesis that ED visits for asthma are associated with exposure to O3. This study underlines the signifi cant role of air pollutants as triggering asthma attacks.
Doi 10.2478/v10001-008-0002-3
Pmid 18468973
Wosid WOS:000259248000002
Is Certified Translation No
Dupe Override No
Comments Source: Web of Science WOS:000259248000002
Is Public Yes
Language Text English
Keyword air pollution; asthma; temperature; emergency department visit; relative humidity; relative risk
Is Qa No