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Distribution and determinants of house dust mite allergens in Europe: the European Community Respiratory Health Survey II
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2006 (English)In: Journal of Allergy and Clinical Immunology, ISSN 0091-6749, E-ISSN 1097-6825, Vol. 118, no 3, 682-690 p.Article in journal (Refereed) Published
Abstract [en]

Background: Several studies in European homes have described allergen levels from the house dust mite species Dermatophagoides pteronyssinus and to a lesser extent Dermatophagoides farinae, but geographic comparisons of exposure levels and risk factors have been hampered by a lack of standardized methods.

Objective: To study the distribution and determinants of the major house dust mite allergens Der p 1 and Der f 1 in 10 European countries using a common protocol.

Methods: During home visits with 3580 participants of the European Community Respiratory Health Survey II from 22 study centers, mattress dust was sampled and analyzed for Der p 1, Der f 1, and Der 2 allergen. Information on housing characteristics was obtained by both observations and interview.

Results: Der 1 and Der 2 allergens were detectable (>= 0.1 mu g/g) in 68% and 53% of the samples, respectively. Large differences in allergen levels between study centers were observed, and geographic patterns for Der p 1 and Der f 1 were different. Low winter temperatures reduced Der p 1 rather than Der f 1. Important risk factors for high allergen levels included an older mattress, a lower floor level of the bedroom, limited ventilation of the bedroom, and dampness for Der p 1 but not for Der f 1.

Conclusion: There are large qualitative and quantitative differences of house dust mite allergen levels in Europe, which can partly be explained by geographic and housing characteristics.

Clinical implications: Mite allergen exposure may be reduced by replacing the mattress regularly and increasing ventilation of the bedroom, particularly in winter.

Place, publisher, year, edition, pages
2006. Vol. 118, no 3, 682-690 p.
Keyword [en]
house dust mites, allergens, housing, risk factors, geographic, ECRHS
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-26048DOI: 10.1016/j.jaci.2006.04.060ISI: 000240649000022PubMedID: 16950288OAI: oai:DiVA.org:uu-26048DiVA: diva2:53822
Available from: 2007-02-14 Created: 2007-02-14 Last updated: 2011-06-14Bibliographically approved

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