Epidemiologic features of Kawasaki disease in South Korea: data from nationwide survey, 2009-2011.

Abstract To assess the recent epidemiologic features of Kawasaki disease (KD) in South Korea from the nationwide survey conducted between 2009 and 2011. We collected data regarding the incidence, symptoms, treatment and coronary complications associated with acute KD by sending questionnaires to the 100 hospitals that have pediatric residency programs from 2009 to 2011. We received complete responses from 73 hospitals and partial responses from 14 hospitals. A total of 13,031 patients of KD were reported from the 87 hospitals (3941 in 2009, 4635 in 2010 and 4455 in 2011). The male to female ratio was 1.44:1, and the median age at diagnosis was 28 months. From the questionnaires with complete responses, we noted that the incidence of KD per 100,000 children