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Int. J. Environ. Res. Public Health 2011, 8(8), 3192-3201; doi:10.3390/ijerph8083192
Article

Prevalence of Symptoms of Severe Asthma and Allergies in Irish School Children: An ISAAC Protocol Study, 1995–2007

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Received: 5 May 2011; in revised form: 25 June 2011 / Accepted: 22 July 2011 / Published: 2 August 2011
(This article belongs to the Special Issue Health Behavior and Public Health)
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Abstract: Childhood asthma is a recurring health burden and symptoms of severe asthma in children are also emerging as a health and economic issue. This study examined changing patterns in symptoms of severe asthma and allergies (ever eczema and hay fever), using the Irish International Study of Asthma and Allergies in Childhood (ISAAC) protocol. ISAAC is a cross-sectional self-administered questionnaire survey of randomly selected representative post-primary schools. Children aged 13–14 years were studied: 2,670 (in 1995), 2,273 (in 1998), 2,892 (in 2002–2003), and 2,805 (in 2007). Generalized linear modelling using Poisson distribution was employed to compute adjusted prevalence ratios (PR). A 39% significant increase in symptoms of severe asthma was estimated in 2007 relative to the baseline year 1995 (adjusted PR: 1.39 [95% CI: 1.14–1.69]) increasing from 12% in 1995 to 15.3% in 2007. Opposite trends were observed for allergies, showing a decline in 2007, with an initial rise. The potential explanations for such a complex disease pattern whose aetiological hypothesis is still evolving are speculative. Changing environmental factors may be a factor, for instance, an improvement in both outdoor and indoor air quality further reinforcing the hygiene hypothesis but obesity as a disease modifier must also be considered.
Keywords: allergies; asthma; Ireland; ISAAC; symptoms; severe asthma allergies; asthma; Ireland; ISAAC; symptoms; severe asthma
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Kabir, Z.; Manning, P.J.; Holohan, J.; Goodman, P.G.; Clancy, L. Prevalence of Symptoms of Severe Asthma and Allergies in Irish School Children: An ISAAC Protocol Study, 1995–2007. Int. J. Environ. Res. Public Health 2011, 8, 3192-3201.

AMA Style

Kabir Z, Manning PJ, Holohan J, Goodman PG, Clancy L. Prevalence of Symptoms of Severe Asthma and Allergies in Irish School Children: An ISAAC Protocol Study, 1995–2007. International Journal of Environmental Research and Public Health. 2011; 8(8):3192-3201.

Chicago/Turabian Style

Kabir, Zubair; Manning, Patrick J.; Holohan, Jean; Goodman, Patrick G.; Clancy, Luke. 2011. "Prevalence of Symptoms of Severe Asthma and Allergies in Irish School Children: An ISAAC Protocol Study, 1995–2007." Int. J. Environ. Res. Public Health 8, no. 8: 3192-3201.



Int. J. Environ. Res. Public Health EISSN 1660-4601 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert