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Background: Atopic dermatitis (AD) and hand eczema often co-occur, particularly among adults. Objectives: To examine the interplay between AD and hand eczema in the general population, by characterising prevalence, disease severity, contact sensitization, and comorbidities in individuals with one or both conditions. Materials and Methods: In this cross-sectional study, 100 000 randomly selected adults in the Danish general population received a questionnaire via a secure, digital mailbox linked to their civil registration number. Participants answered questions regarding eczema, disease severity, patch testing, and comorbidities. Results: A total of 40 007 individuals responded to the question on a lifetime prevalence of AD, and the prevalence among adult Danes was 9.0%. Nearly one third of individuals with AD reported moderate to severe disease. AD was associated with contact sensitization and increased hand eczema prevalence. Individuals with both AD and hand eczema reported worse disease severity. Furthermore, having both conditions was associated with an increased risk of psychiatric comorbidities. Conclusions: This study provided updated information about unselected adults with AD in Denmark. Individuals with both AD and hand eczema represent a vulnerable subgroup that physicians should be attentive to.
Vinge et al. (Thu,) studied this question.
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