^\<0.000[^0][^0][^0] Table 0.Comparison among ANCA-positive crescentic IgAN, ANCA-negative crescentic IgAN and ANCA-associated crescentic glomerulonephritis patients (simple random sampling): histological data, treatment and prognosisANCA-positive crescentic IgANANCA-negative crescentic IgANANCA--associated crescentic glomerulonephritisP-valueNo. of patients00000Timing of biopsy in respect to onset of symptoms (months)0.0 (0.0, 00.0)0.0 (0.0, 0.0)0.0 (0.0, 0.0)0.00Therapy previous to biopsy Corticosteroids (%)00.0^a^00.000.0^b^\<0.000 Pulse methylprednisolone (0--00 mg/kg/day) (%)00.00