ArticleCanadian journal of public health = Revue canadienne de sante publique2014
Emergency department visits for asthma in relation to the Air Quality Health Index: a case-crossover study in Windsor, Canada.
Article in Canadian journal of public health = Revue canadienne de sante publique, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 2 of them syntheses that pooled it.
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Who cites it
10 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Update of a systematic review on associations between environmental exposures and asthma control and exacerbations in young children.BMJ open · 2025Pooled it
- The effects of outdoor air pollution on the respiratory health of Canadian children: A systematic review of epidemiological studies.Canadian respiratory journalPooled it
- Risk and Resilience: How Is the Health of Older Adults and Immigrant People Living in Canada Impacted by Climate- and Air Pollution-Related Exposures?International journal of environmental research and public health · 2021Review
- Assessment of the Air Quality Health Index (AQHI) and four alternate AQHI-Plus amendments for wildfire seasons in British Columbia.Canadian journal of public health = Revue canadienne de sante publique · 2020Article
- Increased Weekly Mean PMFrontiers in veterinary science · 2020Article
- The Air Quality Health Index and all emergency department visits.Environmental science and pollution research international · 2019Article
- Validation of fitness tracker for sleep measures in women with asthma.The Journal of asthma : official journal of the Association for the Care of Asthma · 2019Article
- A Multi-Pollutant Air Quality Health Index (AQHI) Based on Short-Term Respiratory Effects in Stockholm, Sweden.International journal of environmental research and public health · 2019Article
- Ambient air pollution and emergency department visits for asthma in Erie County, New York 2007-2012.International archives of occupational and environmental health · 2018Article
- Exposure to air pollution near a steel plant is associated with reduced heart rate variability: a randomised crossover study.Environmental health : a global access science source · 2017Article
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesIn this study, associations of short-term changes in ambient air pollution with emergency department (ED) visits for asthma were examined in hospitals in the area of Windsor, Ontario. Ambient air pollution quality was represented by the Air Quality Health Index(AQHI), calculated using a formula that combines the concentrations and the relative health impacts of three ambient air pollutants: ozone , nitrogen dioxide and fine particulate matter.
methodsData on ED visits were retrieved from the National Ambulatory Care Reporting System. Only patients two years of age and older were considered. A time-stratified case-crossover design was applied to 6,697 ED visits for asthma for the period of April 2004 to December 2010. Odds ratios (ORs) and their corresponding 95% confidence intervals (CIs) for ED visits associated with increased (by one unit) levels of AQHI were calculated by applying conditional logistic regression.
resultsPositive and statistically significant results were observed between AQHI levels and ED visits for asthma. For all patients the largest value, OR=1.17 (CI: 1.09, 1.26), was obtained for exposures lagged by 9 days in the warm season (April-September). Effects among children 2 to 14 years of age were observed for same-day exposure (lag 0), with an OR=1.11(CI: 1.01, 1.21).
conclusionExposure to ambient air pollution in Windsor increases the risk of ED visits for asthma. When the adverse effects of air pollutants are increased, patient visits to the ED depend on the patient's age.
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