Dermatology ·
Contact sensitization rates similar in Chinese patients with and without atopic dermatitis
A retrospective study of 3,487 patients undergoing patch testing in China found similar overall contact sensitization prevalence in patients with and without atopic dermatitis. Patients with atopic dermatitis had higher positive reaction rates to several preservatives and propylene glycol.
- Overall sensitization prevalence was similar between groups.
- Several preservatives elicited more positive reactions in patients with AD.
- The study included patients referred for patch testing.
Researchers retrospectively reviewed patch-test records from 3,487 patients in China tested between 2018 and 2023: 146 had atopic dermatitis (AD) and 3,341 did not. The study compared overall contact sensitization prevalence and reactions to individual allergens.
In practice
Among patients referred for patch testing in this Chinese cohort, overall sensitization prevalence did not differ significantly by AD status (82.88% vs 84.71%; p=0.55), but patients with AD had higher positive reaction rates to several preservatives and propylene glycol. These findings may help inform allergen consideration when evaluating suspected contact allergy in people with AD, but they do not establish that these allergens caused or worsened their dermatitis. The retrospective, selected patch-testing population limits generalization to all people with AD.
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Acta Dermato-Venereologica: Prevalence of Contact Sensitization in Patients with Atopic Dermatitis: A Retrospective Study from China ↗This is an automated AI-condensed summary that has not yet been reviewed by an editor. Always consult the full item at the original source.