13303 Prevalence of photodermatoses in the general dermatology clinic of four academic medical centers: A multicenter retrospective analysis of 1080 patients over a 10-year period
Mohammad T, Hamel R, Chahine A, Vick GL, Boh E, Alora MBT, Mistur R, Baron ED, Cooper K, and Lim HW. 13303 Prevalence of photodermatoses in the general dermatology clinic of four academic medical centers: A multicenter retrospective analysis of 1080 patients over a 10-year period. Journal of the American Academy of Dermatology 2020; 83(6):AB117.
J Am Acad Dermatol
Background: Previous studies have examined the prevalence of photodermatoses among racial groups in academic institutions. Because of an insufficient amount of patients, various racial differences were not statistically significant. Objective: Assess the prevalence of photodermatoses in four academic medical centers and compare the frequency of photodermatoses among racial groups. Methods: A retrospective review of dermatology clinic medical records was performed at 4 institutions. Charts documenting a diagnosis consistent with the International Classification of Disease, Ninth and Tenth Revisions, codes related to photodermatoses between August 2006 and August 2016 were selected for further individual evaluation. A total of 9736 charts were manually reviewed and classified. Results: There were 1080 patients with photodermatoses identified: 572 (53%) African American/Black, 378 (35%) White, and 130 (12%) of other races. Statistically significant differences in the distribution between Whites and Blacks were identified for polymorphous light eruption (more common in Blacks), as well as for photoallergic contact dermatitis, phototoxic drug eruption, phytophotodermatitis, porphyria, and solar urticaria (more common in Whites). The most commonly diagnosed photodermatoses were polymorphous light eruption (total 672), photodermatitis not otherwise specified (total 189), and phototoxic drug eruption (total 73). Discussion: Comparing Blacks and Whites, our study demonstrated significantly higher proportions of polymorphous light eruption in Blacks, and higher proportions of photoallergic contact dermatitis, phototoxic drug eruptions, phytophotodermatitis, porphyrias, and solar urticaria in Whites.