Autoantibodies against the replication protein A complex in systemic lupus erythematosus and other autoimmune diseases

Table 3 Frequency of autoantibodies (percentages) in patients with anti-RPA

Autoantibody	RPA(+), all (n = 9)	RPA(+), SLE (n = 4)	RPA(-), SLE (n = 272)
Anti-nRNP	0^a	0	39^a
Anti-Sm	0	0	15
Anti-Ro	11	25	33
Anti-La	0	0	11
Anti-Ku	0	0	2
Rib-P	0	0	8
Anti-RNA helicase A	0	0	6
Anti-Su	22	0	10

RPA, replication protein A; SLE, systemic lupus erythematosus; ^a, p = 0.00122 by Fisher's exact test.

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