Frequency of renal involvement in HSP ?

Ans. is 'c' i.e., 40-60%The repoed incidence of renal involvement in HSP varies considerably between different studies.o This may be because of the different criteria used to describe the involvement & the variability of the length used to follow up.o In different studies incidence of pediatric renal involvement in HSP was between 20-56% and in adults 50-78%