Fig. 2From: Incidence and risk factors for recurrent Henoch-Schönlein purpura in children from a 16-year nationwide databaseKaplan-Meier analysis. a, at the end of the 16-year cohort, 83.6% of patients remained free of a second HSP episode. The mean time between the first and the second HSP episodes was 9.21 months. b, among patients with second HSP, 47.0% of patients remained free of the third HSP episode. The average time from the second to the third HSP episode was 6.77 monthsBack to article page