Table 3.

Comparison of laboratory data according to treatment modality of systematic lupus erythematosus patients.

Characteristics n = 374	Plasma exchange (α)		Combination (β)		Plasmapheresis (γ)		p value	Significance
	n = 301		n = 21		n = 52
	Mean	SD	Mean	SD	Mean	SD
Age	38.92	16.18	30.14	13.30	34.25	12.44	0.01∗	αβ
Leukocyte	6.63	2.74	5.41	2.86	6.70	2.71	0.52
Neutrophil (%)	69.85	13.27	60.80	18.19	75.25	10.12	0.20
Lymphocyte (%)	22.17	11.93	27.60	17.23	18.23	9.37	0.44
Monocyte (%)	6.14	2.77	7.38	2.66	5.63	2.32	0.55
Platelet	201.22	79.40	191.71	92.42	204.85	75.62	0.94
Hemoglobin	11.25	2.12	12.09	.96	12.84	1.53	0.02∗	αγ
Hematocrit	34.06	6.12	36.67	2.45	38.01	4.43	0.02∗	αγ
C-reactive protein	15.12	28.74	1.83	.83	4.70	5.52	0.65
Erythrocyte sediment rate	40.06	31.10	34.00	x	13.80	17.63	0.20
Creatinine	0.92	0.95	0.61	0.02	0.61	0.06	0.66
High-density lipoprotein	62.00	18.54	72.00	x	40.50	0.71	0.25
Low-density lipoprotein	104.85	37.99	77.00	x	79.00	45.25	0.55
Rheumatoid factor	14.37	4.97	x	x	11.50	x	0.67
Anti-nuclear antibody (times of dilution)	250.00	429.49	x	x	30.00	38.30	0.32
Beta 2-glycoprotein I	10.77	22.78	6.05	3.89	21.33	33.59	0.44
Anti-cardiolipin IgG	12.45	18.92	6.33	2.81	37.63	44.60	0.11
Anti-cardiolipin IgM	4.57	8.56	1.93	1.53	3.60	4.25	0.85
Anti-Ro IgG	138.54	112.08	148.95	115.20	141.41	133.95	0.98
Anti-La IgG	53.12	110.51	54.48	130.08	66.33	138.36	0.94
Anti-U1 ribonuclear protein IgG	30.53	69.08	86.17	131.53	48.43	95.04	0.24
Anti-Smith IgG	6.31	20.23	20.52	48.74	14.45	36.45	0.33
Anti-Scl70 IgG	0.43	0.39	0.35	.35	0.35	0.31	0.83
Anti-Jo1 IgG	0.34	0.28	0.40	x	0.25	0.30	0.83
Hepatitis B surface antigen titer	1132.40	2041.86	x	x	0.00	x	0.61

SD: standard deviation. ∗ indicates p < 0.05.