Background: Contact sensitization in children is increasing. The offending allergens differ depending on patient age and sex. We aimed to determine the sensitization profiles in children (aged 6-12) and adolescents (aged 13-18), to compare these to a control group of adults (aged 60-66), and to evaluate differences in sensitization patterns between working and non-working adolescents.
Patients/materials/methods: We analyzed Information Network of Departments of Dermatology (IVDK) data from 2009 to 2016 using multiple logistic regression analysis. Of the 99 082 patients documented in the IVDK database, 591 children, 2451 adolescents and 12 122 adults were included in further analysis.
Results: Nickel was the most frequent contact allergen among all age-groups. Children and adolescents showed significantly lower reaction rates to fragrance mix, methyldibromo-glutaronitrile, methylisothiazolinone, and propolis than adults. Positive reactions to sorbitan sesquioleate and mercapto mix among children and to cobalt among adolescents were significantly more frequent than in adults. Working adolescents had more often positive reactions to methyl(chloro)isothiazolinone (skin lesions predominantly on hands) and paraben mix (skin lesions predominantly on feet) when compared to non-working peers. Patch-tested children were more often diagnosed with atopic dermatitis than adults (P < 0.0001).
Conclusions: Contact allergens display age-specific patterns, which should be considered in a standardized series targeting different patient populations (children and adolescents). Employed adolescents should preferably be tested with the baseline series to optimize allergen identification.
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