Changes in clinical features in Henoch-Schönlein purpura during three decades: an observational study at a single hospital in Korea.

Objective: It is unknown whether epidemiological or clinical characteristics of Henoch-Schönlein purpura (HSP) have changed over time. This study aimed at evaluating the epidemiological and clinical changes of HSP during 3 decades.

Methods: We retrospectively analyzed the data of 515 children with HSP (0-15 years of age) between 1987 and 2015.