Background: The association of atopic dermatitis (AD) and allergic contact dermatitis has been a matter of considerable uncertainty. Study results range from lack of any association to increased sensitization for multiple allergens, but fail to identify consistent allergen associations. Objective: We studied a large patch test cohort of patients stratified by their atopic skin diathesis using the Erlangen Atopy Score (EAS), independent of active skin disease. Methods: Retrospective multi-center data analysis from five departments of dermatology in Germany with 4,509 patients. Patients were grouped as “no atopic skin diathesis” (n = 2,165) and “atopic skin diathesis” (n = 1,743), according to EAS. Results: Significantly more individuals with atopic skin diathesis showed at least one positive patch test reaction to the baseline series compared to individuals without atopic skin diathesis (49.1 % vs. 38.3 %). In logistic regression analyses, atopic skin diathesis was associated with a significantly higher risk of sensitization to methylchloroisothiazolinone/methylisothiazolinone (OR 2.383) and methylisothiazolinone (OR 1.891), thiuram mix (OR 1.614), as well as nickel (OR 1.530), cobalt (OR 1.683), and chromium (OR 2.089). Conclusions: Atopic skin diathesis proved to be the most important intrinsic risk factor for contact sensitization to few, specific allergens. Past or present AD was a less relevant variable.
CITATION STYLE
Forkel, S., Cevik, N., Schill, T., Worm, M., Mahler, V., Weisshaar, E., … Buhl, T. (2021). Atopic skin diathesis rather than atopic dermatitis is associated with specific contact allergies. JDDG - Journal of the German Society of Dermatology, 19(2), 231–240. https://doi.org/10.1111/ddg.14341
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