Exercise-Induced Asthma Symptoms and Nighttime Asthma : Are They Similar to AHR?
Joint Authors
Backer, Vibeke
Rasmussen, L. M.
Source
Issue
Vol. 2009, Issue 2009 (31 Dec. 2009), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2009-11-12
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Background.
Asthma experienced during exercise and during the night is based on the presence of airway hyperresponsiveness (AHR).
The aim of the present study was to examine whether AHR is a predictor of exercise-induced asthma (EIA) and nighttime symptoms.
Material.
We included 793 asthmatics subjects with symptoms and a positive asthma test.
Results.
Mean (SD) FEV1 was 93% (15), 71% had rhinitis, and 62% had atopy.
Both EIA and nighttime symptoms were associated with AHR; however, when including other factors of importance in a multivariate analysis, logRDR was eliminated, whereas FEV1% pred (P<.001), smoking (P<.05), atopy (P<.001), sex (P<.001), and treatment (P<.01) were associated with having EIA while dyspnoea (P<.001), cough (P<.001), and eosinophils (P<.01) were associated with frequent night symptoms.
The risk of having nighttime awakenings due to asthma was more than twofold higher among those with EIA symptoms than among those without symptoms (OR (CI95%) 2.77 (2.0–3.8) (P<.001)).
In Conclusion.
EIA and night symptoms are associated with AHR, but other factors of importance eliminated this close association.
Night asthma is more closely associated with airway inflammation than AHR.
American Psychological Association (APA)
Backer, Vibeke& Rasmussen, L. M.. 2009. Exercise-Induced Asthma Symptoms and Nighttime Asthma : Are They Similar to AHR?. Journal of Allergy،Vol. 2009, no. 2009, pp.1-6.
https://search.emarefa.net/detail/BIM-467297
Modern Language Association (MLA)
Backer, Vibeke& Rasmussen, L. M.. Exercise-Induced Asthma Symptoms and Nighttime Asthma : Are They Similar to AHR?. Journal of Allergy No. 2009 (2009), pp.1-6.
https://search.emarefa.net/detail/BIM-467297
American Medical Association (AMA)
Backer, Vibeke& Rasmussen, L. M.. Exercise-Induced Asthma Symptoms and Nighttime Asthma : Are They Similar to AHR?. Journal of Allergy. 2009. Vol. 2009, no. 2009, pp.1-6.
https://search.emarefa.net/detail/BIM-467297
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-467297