Lower In-Hospital Mortality with Plasma Exchange than Plasmapheresis in a Subgroup Analysis of 374 Lupus Patients

Table 1

Comparison of patient characteristics according to treatment modality.

			Plasma exchange ()		Combination ()		Plasmapheresis ()		value
			Female	371	(85.09%)	299	85.43%	21		91.30%	51	80.95%	0.45
Autoimmune/rheumatic diseases
Systemic lupus erythematosus	374	(85.78%)	301	86.00%	21	91.30%	52	82.54%	0.57
Sjogren’s syndrome	37	(8.49%)	25	7.14%	3	13.04%	9	14.29%	0.13
Systemic sclerosis	16	(3.67%)	14	4.00%	0	0.00%	2	3.17%	0.59
Rheumatoid arthritis	9	(2.06%)	8	2.29%	0	0.00%	1	1.59%	0.73
Dermatomyositis	9	(2.06%)	9	2.57%	0	0.00%	0	0.00%	0.32
Polymyositis	8	(1.83%)	6	1.71%	0	0.00%	2	3.17%	0.58
Rheumatism (others)	5	(1.15%)	4	1.14%	0	0.00%	1	1.59%	0.83
Other comorbidities
Malignancy	16	(3.67%)	16	4.57%	0	0.00%	0	0.00%	0.13
Diabetes mellitus	12	(2.75%)	12	3.43%	0	0.00%	0	0.00%	0.22
Hypertension	36	(8.26%)	32	9.14%	3	13.04%	1	1.59%	0.09
Hepatitis without HBV or HCV	12	(2.75%)	11	3.14%	0	0.00%	1	1.59%	0.56
Cytomegalovirus infection	2	(0.46%)	1	0.29%	0	0.00%	1	1.59%	0.35
Chronic hepatitis B infection	1	(0.23%)	1	0.29%	0	0.00%	0	0.00%	0.88
Hepatitis C infection	1	(0.23%)	1	0.29%	0	0.00%	0	0.00%	0.88
Peripheral neuropathy	7	(1.61%)	0	0.00%	1	4.35%	6	9.52%	<0.01
Gout	1	(0.23%)	1	0.29%	0	0.00%	0	0.00%	0.88
Hyperlipidemia	4	(0.92%)	3	0.86%	1	4.35%	0	0.00%	0.17
Major depression	2	(0.46%)	1	0.29%	0	0.00%	1	1.59%	0.35
Fibromyalgia	4	(0.92%)	3	0.86%	0	0.00%	1	1.59%	0.76

indicates ; the comparison is significant between α and , as well as between α, , and .