At Biopsy 6 months after PSL
n 55 51
SBP(mmHg) 116 ± 21 114 ± 19
DBP(mmHg) 68 ± 19 63 ± 18
eGFR(ml/min/1.73 m2) 124 ± 42.1 129 ± 36.3
Proteinuria(g/g Cr) 1.41 ± 1.21  0.22 ± 0.44 *
Macrohematuria 17/55(30.9%) 0/51(0%)
Microhematuria RBC ≥ 50/hpf   21/55(38.2%) 2/51(3.9%)
20 ≤ RBC < 50/hpf 11/55(20%) 9/51(17.6%)
RBC < 20/hpf 6/55(12%) 40/51(78.4%)
Urinary podocyte(/ml) 3.76 ± 1.82  0.85 ± 0.91 *
Nephrotic syndrome 5/55(9.1%) 0/51(0%)
Renal insufficiency 1/55(2%) 0/51(0%)
PSL: prednisolone; SBP: systolic blood pressure; DBP: diastolic blood pressure; hpf: high-power field; eGFR: estimated glomerular filtration rate; RBC: red blood cells.
*p<0.05
Table 1: Clinical characteristics and laboratory findings of the IgA nephropathy patients at the renal biopsy and after 6 months of prednisolone therapy.