The study population comprised 33 children with SHN, who underwent renal biopsy. Nephropathy was classified according to WHO classification, activity index (Ai) and chronicity index (CI). The patients were divided into 3 groups: Group 1--children with skin, abdominal and articular symptoms, Group 2--with isolated skin symptoms, Group 3--skin-articular or skin-abdominal symptoms.
Results: In Group 1 nephropathy was present significantly earlier (p < 0.05) than in Group 2, 3. We not observed any correlation between grade of WHO, IA, IP in Groups 1,2,3.
Conclusion: The result of renal biopsy in children with SHN is not depend on non-renal symptoms of this disease.