Analysis of Erythrocyte C4d to Complement Receptor 1 Ratio: Use in Distinguishing between Infection and Flare-Up in Febrile Patients with Systemic Lupus Erythematosus

Table 1

Comparison of clinical and laboratory manifestations of the febrile SLE patients with and without infection.

Manifestation	Febrile SLE patients with infection; (n = 22)		Febrile SLE patients without infection; (n = 25)
		%		%
Convulsion	0	0	0	0
Psychosis	1	5	2	8
Mental organic syndrome	0	0	0	0
Cerebrovascular event	1	5	1	4
Vasculitis	0	0	0	0
Arthritis	2	9	3	12
Myositis	1	5	0	0
Urinary casts	0	0	5	20
Haematuria	8	36	11	44
Proteinuria	6	27	13	52
Pyuria	9	41	12	48
Exanthema	0	0	1	4
Alopecia	0	0	0	0
Oral ulcers	3	14	4	16
Pleuritis	3	14	5	20
Pericarditis	2	9	5	20
Complement decrease	10	46	22	88
DNA increase	6	27	13	52
Thrombocytopenia	3	14	6	24
Leukopenia	1	5	7	28