Exercise-Induced Wheezing among Japanese Pre-School Children and Pupils

Background: Exercise-induced wheezing (EIW) may be a symptom of asthma and is a predictor of exercise- induced bronchoconstriction, transient narrowing of the lower airway following exercise in the presence or absence of diagnosed asthma. Population-based studies with a large sample of EIW in relati...

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Main Authors: Yoko Murakami, Satoshi Honjo, Hiroshi Odajima, Yuichi Adachi, Koichi Yoshida, Yukihiro Ohya, Akira Akasawa
Format: Article
Language:English
Published: Elsevier 2014-01-01
Series:Allergology International
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1323893015300393
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author Yoko Murakami
Satoshi Honjo
Hiroshi Odajima
Yuichi Adachi
Koichi Yoshida
Yukihiro Ohya
Akira Akasawa
author_facet Yoko Murakami
Satoshi Honjo
Hiroshi Odajima
Yuichi Adachi
Koichi Yoshida
Yukihiro Ohya
Akira Akasawa
author_sort Yoko Murakami
collection DOAJ
description Background: Exercise-induced wheezing (EIW) may be a symptom of asthma and is a predictor of exercise- induced bronchoconstriction, transient narrowing of the lower airway following exercise in the presence or absence of diagnosed asthma. Population-based studies with a large sample of EIW in relation to age, sex, current asthma severity and medication usage have been sparse. Methods: International Study of Asthma and Allergies in Childhood questionnaires were distributed at 885 nurseries, 535 primary schools, 321 junior high schools and 190 high schools, respectively, across Japan, and the corresponding data on 46,597, 41,216, 45,960 and 51,104 children were analyzed. Results: Prevalence of EIW was 4.8, 4.7, 17.9 and 15.4% for each of the four educational facility types, respectively. Among 24,103 current asthmatics, 20.9, 28.7, 76.1 and 73.6% of subjects for the 4 educational facility groups reported to have experienced EIW, respectively. Severity of current asthma was associated with the risk of EIW; odds ratio (95% confidence interval) of children with asthma attack every day for having EIW once a week or more, using intermittent asthmatics as reference group, were 24.48 (19.33 to 31.01) adjusted for other covariates. Among current asthmatic kindergartners, increase in risk for EIW due to ascending severity of current asthma was mitigated by daily use of leukotriene receptor antagonist (p for interaction=0.071). Conclusions: EIW was not rare among current asthmatic children. An increased risk for EIW was in accordance with increasing severity of current asthma and this relation was mitigated with leukotriene receptor antagonist daily use among kindergartners.
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spelling doaj.art-50fef157b1a742bd8e36dc9c1f9ccc9f2022-12-21T23:54:51ZengElsevierAllergology International1323-89302014-01-0163225125910.2332/allergolint.13-OA-0644Exercise-Induced Wheezing among Japanese Pre-School Children and PupilsYoko Murakami0Satoshi Honjo1Hiroshi Odajima2Yuichi Adachi3Koichi Yoshida4Yukihiro Ohya5Akira Akasawa6Department of Paediatrics, National Hospital Organization Fukuoka National Hospital, FukuokaDepartment of Paediatrics, National Hospital Organization Fukuoka National Hospital, FukuokaDepartment of Paediatrics, National Hospital Organization Fukuoka National Hospital, FukuokaDepartment of Paediatrics, Faculty of Medicine, Graduate School of Medicine and Pharmaceutical Science for Education, Toyama University, ToyamaDivision of Allergy, Tokyo Metropolitan Children's Medical CentreDivision of Allergy, National Centre for Child Health and Development, Tokyo, JapanDivision of Allergy, Tokyo Metropolitan Children's Medical CentreBackground: Exercise-induced wheezing (EIW) may be a symptom of asthma and is a predictor of exercise- induced bronchoconstriction, transient narrowing of the lower airway following exercise in the presence or absence of diagnosed asthma. Population-based studies with a large sample of EIW in relation to age, sex, current asthma severity and medication usage have been sparse. Methods: International Study of Asthma and Allergies in Childhood questionnaires were distributed at 885 nurseries, 535 primary schools, 321 junior high schools and 190 high schools, respectively, across Japan, and the corresponding data on 46,597, 41,216, 45,960 and 51,104 children were analyzed. Results: Prevalence of EIW was 4.8, 4.7, 17.9 and 15.4% for each of the four educational facility types, respectively. Among 24,103 current asthmatics, 20.9, 28.7, 76.1 and 73.6% of subjects for the 4 educational facility groups reported to have experienced EIW, respectively. Severity of current asthma was associated with the risk of EIW; odds ratio (95% confidence interval) of children with asthma attack every day for having EIW once a week or more, using intermittent asthmatics as reference group, were 24.48 (19.33 to 31.01) adjusted for other covariates. Among current asthmatic kindergartners, increase in risk for EIW due to ascending severity of current asthma was mitigated by daily use of leukotriene receptor antagonist (p for interaction=0.071). Conclusions: EIW was not rare among current asthmatic children. An increased risk for EIW was in accordance with increasing severity of current asthma and this relation was mitigated with leukotriene receptor antagonist daily use among kindergartners.http://www.sciencedirect.com/science/article/pii/S1323893015300393bronchial asthmachildhood asthmainhaled steroidleukotriene receptor antagonistwheeze
spellingShingle Yoko Murakami
Satoshi Honjo
Hiroshi Odajima
Yuichi Adachi
Koichi Yoshida
Yukihiro Ohya
Akira Akasawa
Exercise-Induced Wheezing among Japanese Pre-School Children and Pupils
Allergology International
bronchial asthma
childhood asthma
inhaled steroid
leukotriene receptor antagonist
wheeze
title Exercise-Induced Wheezing among Japanese Pre-School Children and Pupils
title_full Exercise-Induced Wheezing among Japanese Pre-School Children and Pupils
title_fullStr Exercise-Induced Wheezing among Japanese Pre-School Children and Pupils
title_full_unstemmed Exercise-Induced Wheezing among Japanese Pre-School Children and Pupils
title_short Exercise-Induced Wheezing among Japanese Pre-School Children and Pupils
title_sort exercise induced wheezing among japanese pre school children and pupils
topic bronchial asthma
childhood asthma
inhaled steroid
leukotriene receptor antagonist
wheeze
url http://www.sciencedirect.com/science/article/pii/S1323893015300393
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