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Key clinical point: Compared with children without atopic dermatitis (AD), those with AD are significantly more likely to have positive patch tests (PPT) and respond to ≥1 allergen on patch testing.
Major finding: Children with vs without AD were significantly more likely to have a longer duration of dermatitis (P < .0001), >1 PPT result (P = .005), a greater number of PPT overall (P = .012), and a more generalized distribution of dermatitis (P = .001) as well as PPT to bacitracin (P = .030), carba mix (diphenylguanidine, zinc dibutyldithiocarbamate, and zinc diethyldithiocarbamate) (P = .025), and cocamidopropyl betaine (P = .0007).
Study details: This retrospective case-control study included 615 children with AD and 297 children without AD.
Disclosures: This study was supported by the Dermatology Foundation, Evanston, IL. The authors declared no conflicts of interest.
Source: Johnson H et al. Prevalence of allergic contact dermatitis in children with and without atopic dermatitis: A multicenter retrospective case-control study. J Am Acad Dermatol. 2023;89(5):1007-1014 (Sep 25). doi: 10.1016/j.jaad.2023.06.048
Key clinical point: Compared with children without atopic dermatitis (AD), those with AD are significantly more likely to have positive patch tests (PPT) and respond to ≥1 allergen on patch testing.
Major finding: Children with vs without AD were significantly more likely to have a longer duration of dermatitis (P < .0001), >1 PPT result (P = .005), a greater number of PPT overall (P = .012), and a more generalized distribution of dermatitis (P = .001) as well as PPT to bacitracin (P = .030), carba mix (diphenylguanidine, zinc dibutyldithiocarbamate, and zinc diethyldithiocarbamate) (P = .025), and cocamidopropyl betaine (P = .0007).
Study details: This retrospective case-control study included 615 children with AD and 297 children without AD.
Disclosures: This study was supported by the Dermatology Foundation, Evanston, IL. The authors declared no conflicts of interest.
Source: Johnson H et al. Prevalence of allergic contact dermatitis in children with and without atopic dermatitis: A multicenter retrospective case-control study. J Am Acad Dermatol. 2023;89(5):1007-1014 (Sep 25). doi: 10.1016/j.jaad.2023.06.048
Key clinical point: Compared with children without atopic dermatitis (AD), those with AD are significantly more likely to have positive patch tests (PPT) and respond to ≥1 allergen on patch testing.
Major finding: Children with vs without AD were significantly more likely to have a longer duration of dermatitis (P < .0001), >1 PPT result (P = .005), a greater number of PPT overall (P = .012), and a more generalized distribution of dermatitis (P = .001) as well as PPT to bacitracin (P = .030), carba mix (diphenylguanidine, zinc dibutyldithiocarbamate, and zinc diethyldithiocarbamate) (P = .025), and cocamidopropyl betaine (P = .0007).
Study details: This retrospective case-control study included 615 children with AD and 297 children without AD.
Disclosures: This study was supported by the Dermatology Foundation, Evanston, IL. The authors declared no conflicts of interest.
Source: Johnson H et al. Prevalence of allergic contact dermatitis in children with and without atopic dermatitis: A multicenter retrospective case-control study. J Am Acad Dermatol. 2023;89(5):1007-1014 (Sep 25). doi: 10.1016/j.jaad.2023.06.048