Contact allergy and allergic contact dermatitis in children - a review of current data

Area of Science:

• Pediatric Dermatology
• Allergy and Immunology

Background:

• Allergic contact dermatitis (ACD) was historically underestimated in children.
• Recent decades show a rise in case reports and studies indicating ACD's relevance in pediatric populations.
• Prevalence rates in selected pediatric groups were reported between 14.5-70% in 1999.

Purpose of the Study:

• To review studies on the prevalence of positive patch test reactions and ACD in children over the last decade.
• To provide an overview of key findings regarding pediatric ACD.

Main Methods:

• Literature review of studies published in the past decade focusing on pediatric populations.
• Analysis of reported sensitization rates and associated allergen relevance.
• Identification of common allergens and factors influencing patch test outcomes.

Main Results:

• Sensitization rates in selected pediatric groups ranged from 26.6% to 95.6%.
• Associated allergen relevance was high, reported between 51.7% and 100%.
• Nickel, cobalt, thimerosal, and fragrance were identified as the most frequent allergens.

Conclusions:

• The prevalence of ACD in children may be increasing, or diagnostic awareness has improved.
• Tailored patch testing enhances the detection of relevant allergic reactions.
• Sensitization rates and sex do not differ between children with and without atopic dermatitis.