This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'Frequency of renal involvement in HSP ? \nSelect and explain. \nA. 20-40%, B. >80%, C. 40-60%, D. 10%', 'role': 'user'}, {'content': "Answer: C \nExplanation: 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%", 'role': 'assistant'}]