Urticarial vasculitis in pediatric systemic lupus erythematosus

Abstract

Background/Objectives: To determine the prevalence of urticarial vasculitis (UV) in a pediatric systemic lupus erythematosus (pSLE) cohort of Arab ethnicity from Oman and to describe their demographic, clinical, and laboratory features. Methods: We conducted a retrospective multicenter study among pediatric rheumatology centers in Oman over a 10-year period from 2008 to 2018. Analyses were performed using univariate statistics. Results: A total of 148 pSLE under the age of 13 years were included of which 30% (n = 44) were men. The overall mean age at SLE diagnosis was 7.6 ± 3.5 years while the mean disease duration was 10.1 ± 5.4 years. UV was diagnosed in 36% (n = 53) of pSLE patients. Patients with pSLE and UV were more likely to be male (57% vs 15%; P