Table 1. Clinical and biologic features of patients with Berger disease or HSP nephritis at the time of kidney biopsya

Patient No.DiseaseHematuria (red cell/ml)ProteinuriaCreatininemiaSerum IgA level (g/L)Histologic lesions (light microscopy)
a Histologic lesions were graded according to the classification of the International Study of Kidney disease in childhood (ISKDC) modified by Heaton et al. (23) for HSP nephritis and according to the classification proposed by Haas (24) for Berger disease. Neph. Sd, nephrotic syndrome; Normal serum IgA level, < 1.5 g/L.
1Berger diseaseMacroscopic0.4 g/lN4.4Subclass IV
2Berger disease2.6 × 105Neph. SdN0.7Subclass III
3Berger disease1 × 1050.7 g/lN2.12Subclass II
4Berger disease5.7 × 1051.2 g/lN1.67Subclass IV
5HSP9 × 1040.42 g/lN2.14IIa
6HSP1.9 × 1055.6 g/lN1.52IIIa
7HSP>106Neph.SdN3.1IIIa
8HSP1.1 × 1055 g/lN1.56IIa
9HSPMacroscopicNeph.SdN4.87IIb
10HSP>106Neph.SdN2.8IVa
11HSP>106Neph.SdN1.78IIa
12HSP4 × 105Neph.SdN1.24IIIa
13HSP2.5 × 1040.66 g/lN4.9IIIa
14HSP>106Neph.SdN1.61IVb
15HSP>106Neph.SdN1.16IIa
16HSP9.9 × 1042.64 g/lN1.63IIa