Author:
Robichaud Alain,Comtois Paul
Abstract
AbstractThe aim of this study is to analyze the synergy between environmental factors (pollutant, allergenic birch pollen, weather) and its relationship with asthma hospitalization in Montreal, Canada. The data is stratified into weather types and the study restricted to spring season to limit the impact of multiple confounders. Results shows that the daily count of asthma hospitalization (spring 2006–2008) in situation of warm fronts or trowals (daily average of 3.78 counts, CI 95% 2.95–4.61) was much higher (p < 0.001) than in other situations (2.49 counts, CI 95% 2.37–2.71). Moreover, the explained variance of asthma hospitalization due to air pollution rises from about less than 7% (in the case of no stratification) to about 28% (R = 0.53, p < 0.05 with stratification). Statistical tests for interaction and overall results point towards a synergy between environmental factors which exacerbates asthma. A new concept named frontal asthma is proposed to explain several results found here and in the open literature.
Publisher
Springer Science and Business Media LLC
Subject
Health, Toxicology and Mutagenesis,Management, Monitoring, Policy and Law,Atmospheric Science,Pollution
Reference85 articles.
1. Abou Chakra OR, Lacroix G, Sénéchal H, Thibaudon M (2010) Synergie pollen-polluants et rôle des facteurs météorologiques sur le risque de pollinose: évolution des consultations dans la région amiénoise pendant la saison pollinique 2007. Revue française d’allergologie 50:443–449 in French
2. ALA (Almerican Lung Association) (2019) ‘Formaldehyde’. Available at https://www.lung.org/our-initiatives/healthy-air/indoor/indoor-air-pollutants/formaldehyde.html (Last accessed Aug. 1 2019)
3. Asgari MM, DuBois A, Asgari M, Gent J, Beckett WS (1998) Association of ambient air quality with children’s lung function in urban and rural Iran. Arch Environ Health 53(3):222–230
4. Assaad F, Cockburn WC (1974) A seven-year study of WHO virus laboratory reports on respiratory viruses. Bull. World. Health. Organization 53:437–445
5. Beer S, Kannai Y, Waron M (1991) Acute exacerbation of bronchial asthma children associated with afternoon weather changes. Amer Rev Resp Dis 144:31–33
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