Table 2.

Histologic features

	Baseline serum creatinine					p
	<1.0 mg/dl	1.01–1.5 mg/dl	1.51–2.0 mg/dl	2.01–3.0 mg/dl	>3.0 mg/dl
Patients	22	23	16	12	13
WHO class III ≥50% ± V	13 (59%)	8 (35%)	10 (63%)	5 (42%)	8 (62%)	0.30
WHO class IV ± V	9	14	6	7	5
Unclassified	–	1	–	–	–
Activity index	11±3	11±6	13±3	14±4	14±6	0.06
Activity index ≥12	9 (41%)	7 (30%)	8 (50%)	9 (75%)	9 (69%)	0.06
Chronicity index	2±2	3±2	3±3	5±2	5±2	0.002
Chronicity index ≥4	5 (23%)	11 (48%)	6 (38%)	9 (75%)	10 (77%)	0.007