Table 1. Demographic, clinical, and laboratory characteristics of the LN patients.

	Class III	Class IV	Class V	Class V+III	Class V+IV	All
Number (%)	7	18	28	18	26	97
Gender:Male	0	2	1	1	1	5
Female	7	16	27	16	25	92
Age	40.9±11.8	30.0±12.0	30.8±11.7	32.4±11.22	33.9±11.9	32.5±11.8
SLEDAI score	8.86±4.6	9.78±2.8	6.81±4.38	8.11±4.5	8.38±3.4	8.19±4.0
24 h-proteinuria(g/d)*	2.48±3.46	4.69±3.19	2.50±2.49	2.00±2.21	5.01±3.58	3.53±3.2
Ccr(ml/min)*	125.6±54.6	90.8±48.7	132.3±34.7	123.6±35.4	108.1±43.0	116.0±43.3
Dosage of corticosteroid(median mg/d)	60	57.5	35	40	55	50
Albumin*	33.1±3.8	25.7±5.2	31.8±6.4	33.5±6.29	26.7±6.2	29.6±6.7
C3*(mg/ml)	0.54±0.32	0.38±0.13	0.70±0.29	0.62±0.21	0.45±0.20	0.54±0.25
ESR	26.2±12.0	41.0±33.0	33.3±26.8	37.4±26.2	40.2±25.8	37.0±26.9
Disease duration (median months)	94	17.5	19	49	71	31
AI*	4.29±1.5	7.83±2.2	1.61±0.7	3.72±1.7	7.00±2.2	4.79±3.0
CI*	1.86±1.6	3.11±2.3	1.43±1.2	2.33±1.4	3.27±2.1	2.43±1.9

:p<0.05.

ESR: erythrocyte sedimentation rate.

C3:serum complement component 3.