Systematic Identification of Copositivity Groups in Standard Series Patch Testing Through Hierarchical Clustering

• DOI: 10.1001/jamadermatol.2023.2352
• Publication Date: 2023-08-02T15:01:59Z
• Authors: Yul W. Yang; James A. Yiannias; Molly M. Voss; Matthew R. Hall; Molly J. Youssef; Mark D. P. Davis; Dayne H. Voelker; Molly C. Klanderman; Aaron R. Mangold
• Keywords: Male; Cross-Sectional Studies; 0302 clinical medicine; Adolescent; Dermatitis, Allergic Contact; Humans; Female; Patch Tests; Allergens; Retrospective Studies

Patients are frequently copositive for multiple allergens simultaneously, either due to chemical similarity or simultaneous sensitization. A better understanding of copositivity groups would help guide contact avoidance.