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Prevalence of contact allergy in the general population in different European regions

Diepgen, T.L., Ofenloch, R.F., Bruze, M., Bertuccio, P., Cazzaniga, S., Coenraads, P.-J., Elsner, P., Goncalo, M., Svensson, Å., Naldi, L.·2016·British Journal of Dermatology

Abstract

BACKGROUND: Population-based studies about contact allergy are scarce. OBJECTIVES: To obtain reliable estimates of the prevalence of contact allergy in the general population in Europe. METHODS: A cross-sectional study of a random sample from the general population, aged 18-74 years, in five different European countries (Sweden, the Netherlands, Germany, Italy and Portugal). In total, 12 377 subjects were interviewed and a random sample (n = 3119) patch tested to TRUE Test panels 1-3 and Fragrance Mix (FM) II, hydroxyisohexyl 3-cyclohexene carboxaldehyde (HICC) and sesquiterpene lactone mix. A positive patch test reaction is considered as contact allergy. RESULTS: In total, 27·0% [95% confidence interval (CI) 25·5-28·5] had at least one positive reaction to an allergen of the European baseline series, with a significantly higher prevalence in women than in men. The highest age-standardized prevalences (≥ 1%) were found for nickel (14·5%, 95% CI 13·2-15·8), thiomersal (5·0%, 95% CI 4·2-5·8), cobalt (2·2%, 95% CI 1·7-2·7), FM II (1·9%, 95% CI 1·5-2·5), FM I (1·8%, 95% CI 1·4-2·3), HICC (1·4%, 95% CI 1·0-1·9), p-tert-butylphenol formaldehyde resin (1·3%, 95% CI 0·9-1·7) and para-phenylenediamine (1·0%, 95% CI 0·6-1·3). Only nickel and thiomersal showed a statistically significantly different prevalence for contact allergy among the different European populations. Subjects reporting contact dermatitis in their lifetime (age-standardized prevalence 15·1%, 95% CI 13·8-16·3) had an increased risk for contact allergy (odds ratio 1·9, 95% CI 1·5-2·5). The risk of having a contact allergy was not increased in those with atopic dermatitis (prevalence 7·6%, 95% CI 6·7-8·6; odds ratio 1·0, 95% CI 0·7-1·4). CONCLUSIONS: Contact allergy to at least one allergen of the European baseline series was diagnosed in more than one-quarter of the general European population. Therefore measures to improve the primary prevention of contact allergy have to be enforced.

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Authors
Diepgen, T. L., Ofenloch, R. F., Bruze, M., Bertuccio, P., Cazzaniga, S., Coenraads, P.-J., Elsner, P., Goncalo, M., Svensson, Å., & Naldi, L.
Venue
British Journal of Dermatology
Published
2015-12-26
Volume
174
Issue
2
Pages
319-329
ISSN
0007-0963 (ISSN-L)
OpenAlex
W1938177405
Cited by
355
References
0
FWCI
25.57
Type
journal article
Language
en
Open access
closed

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