ArticleInternational journal of biometeorology2005
Frequency of emergency room visits for childhood asthma in Ottawa, Canada: the role of weather.
Article in International journal of biometeorology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
22 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Extreme weather and asthma: a systematic review and meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2023Pooled it
- Temperature drop and the risk of asthma: a systematic review and meta-analysis.Environmental science and pollution research international · 2017Pooled it
- Analysing allergen-environment interactions to identify drivers of asthma presentations in Metropolitan Melbourne, 2017-2022.Scientific reports · 2026Article
- Sex and age characteristics of thunderstorm asthma emergency department visits.Hygiene and environmental health advances · 2024Article
- Climate and human health: a review of publication trends in the International Journal of Biometeorology.International journal of biometeorology · 2023Review
- Thunderstorms, Pollen, and Severe Asthma in a Midwestern, USA, Urban Environment, 2007-2018.Epidemiology (Cambridge, Mass.) · 2022Article
- Patterns of medical care utilization according to environmental factors in asthma and chronic obstructive pulmonary disease patients.The Korean journal of internal medicine · 2021Article
- The Contribution of Neighborhood Tree and Greenspace to Asthma Emergency Room Visits: An Application of Advanced Spatial Data in Los Angeles County.International journal of environmental research and public health · 2021Article
- Effect of Ambient Temperature on Daily Nebulized Asthma Hospital Visits in a Tropical City of Dhaka, Bangladesh.International journal of environmental research and public health · 2021Article
- Managing Exacerbations in Thunderstorm Asthma: Current Insights.Journal of inflammation research · 2021Review
- Meteorological rhythms of respiratory and circulatory diseases revealed by Harmonic Analysis.Heliyon · 2020Article
- Geostatistical predictive modeling for asthma and chronic obstructive pulmonary disease using socioeconomic and environmental determinants.Environmental monitoring and assessment · 2019Article
- Thunderstorm-triggered asthma: what we know so far.Journal of asthma and allergy · 2019Review
- Emergency Department Visits for Asthma Exacerbation due to Weather Conditions and Air Pollution in Chuncheon, Korea: A Case-Crossover Analysis.Allergy, asthma & immunology research · 2016Article
- Relationship between environment factors and the number of outpatient visits at a clinic for nonallergic rhinitis in Japan, extracted from electronic medical records.European journal of medical research · 2015Article
- Climate change, air pollution and extreme events leading to increasing prevalence of allergic respiratory diseases.Multidisciplinary respiratory medicine · 2013Article
- A respiratory alert model for the Shenandoah Valley, Virginia, USA.International journal of biometeorology · 2013Article
- Seasonal modification of the association between temperature and adult emergency department visits for asthma: a case-crossover study.Environmental health : a global access science source · 2012Article
- A trans-disciplinary overview of case reports of thunderstorm-related asthma outbreaks and relapse.European respiratory review : an official journal of the European Respiratory Society · 2012Review
- Air pollution and emergency department visits for cardiac and respiratory conditions: a multi-city time-series analysis.Environmental health : a global access science source · 2009Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The aim of this study was to evaluate associations between meteorological conditions and the number of emergency department visits for asthma in a children's hospital in Ottawa, Canada. A case-crossover study design was used. Hospital emergency department visits for asthma between 1992 and 2000 were identified based on patients' presenting complaints. We obtained hourly measures for the following meteorological variables: wind speed, temperature, atmospheric pressure, relative humidity, and visibility. Particular emphasis was placed on exploring the association between asthma visits and fog, thunderstorms, snow, and liquid and freezing forms of precipitation. In total, there were 18,970 asthma visits among children between 2 and 15 years of age. The number of visits and weather characteristics were grouped into 6 h case and control intervals. The occurrence of fog or liquid precipitation was associated with an increased number of asthma visits, while snow was associated with a reduced number (P<0.05). Stratified analyses by season found no association in any of the four calendar intervals between the number of asthma visits and visibility, change in relative humidity and change in temperature. In contrast, summertime thunderstorm activity was associated with an odds ratio of 1.35 (95% CI=1.02-1.77) relative to summer periods with no activity. Models that incorporate calendar and meteorological data may help emergency departments to more efficiently allocate resources needed to treat children presenting with respiratory distress.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.