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The influence of sensitisation to pollens and moulds on seasonal variations in asthma attacks.
- Source :
-
The European respiratory journal [Eur Respir J] 2013 Oct; Vol. 42 (4), pp. 935-45. Date of Electronic Publication: 2013 Mar 07. - Publication Year :
- 2013
-
Abstract
- No large study has described the seasonal variation in asthma attacks in population-based asthmatics in whom sensitisation to allergen has been measured. 2,637 young adults with asthma living in 15 countries reported the months in which they usually had attacks of asthma and had skin-prick tests performed. Differences in seasonal patterns by sensitisation status were assessed using generalised estimating equations. Most young adults with asthma reported periods of the year when their asthma attacks were more common (range: 47% in Sweden to 86% in Spain). Seasonal variation in asthma was not modified by sensitisation to house dust mite or cat allergens. Asthmatics sensitised to grass, birch and Alternaria allergens had different seasonal patterns to those not sensitised to each allergen, with some geographical variation. In southern Europe, those sensitised to grass allergens were more likely to report attacks occurred in spring or summer than in winter (OR March/April 2.60, 95% CI 1.70-3.97; OR May/June 4.43, 95% CI 2.34-8.39) and smaller later peaks were observed in northern Europe (OR May/June 1.25, 95% CI 0.60-2.64; OR July/August 1.66, 95% CI 0.89-3.10). Asthmatics reporting hay fever but who were not sensitised to grass showed no seasonal variations. Seasonal variations in asthma attacks in young adults are common and are different depending on sensitisation to outdoor, but not indoor, allergens.
- Subjects :
- Adult
Allergens immunology
Alternaria immunology
Betula immunology
Europe
Female
Follow-Up Studies
Humans
Immunoglobulin E immunology
Male
Odds Ratio
Poaceae immunology
Random Allocation
Rhinitis, Allergic, Seasonal immunology
Risk
Seasons
Skin Tests
Surveys and Questionnaires
Young Adult
Asthma etiology
Asthma immunology
Fungi immunology
Pollen immunology
Subjects
Details
- Language :
- English
- ISSN :
- 1399-3003
- Volume :
- 42
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- The European respiratory journal
- Publication Type :
- Academic Journal
- Accession number :
- 23471350
- Full Text :
- https://doi.org/10.1183/09031936.00097412