Isotypes of Epstein-Barr Virus Antibodies in Rheumatoid Arthritis: Association with Rheumatoid Factors and Citrulline-Dependent Antibodies

Table 2

EAD antibody positivity rate and EBNA-1 antibody positivity rate. Table of percentage antibody (Ab) positives of EAD (a) or EBNA-1 (b) IgG/IgA/IgM, respectively. Determined by use of cut-off values. RA patients (), SLE patients (), and HCs ().

(a)

	EAD Ab positive (%)
	IgG	IgA	IgM
RA ()	19.5	37.7	27.3
SLE ()	64.3	64.3	28.6
HC ()	10.7	7.1	7.1

(b)

	EBNA-1 Ab positive (%)
	IgG	IgA	IgM
RA ()	97.4	93.5	97.4
SLE ()	89.3	17.6	32.1
HC ()	96.4	7.1	7.1