Table 3.

Summary of Ab reactivity against the full antigen and the fragments.

	SSc n = 43 (%)	SjS (n = 20) (%)	SLE (n = 28) (%)	DM (n = 15) (%)	PBC (n = 15) (%)	p (SSc vs. SjS)	p (SSc vs. SLE)	p (SSc vs. DM)	p (SSc vs. PBC)	p (SjS vs. SLE)	p (SjS vs. DM)	p (SjS vs. PBC)	p (SLE vs. PBC)	p (DM vs. PBC)
Full antigen	100	100	100	100	100	NS	NS	NS	NS	NS	NS	NS	NS	NS
Ro52-1	11.6	40.0	42.9	20	6.7	0.009	0.002	NS	NS	NS	NS	0.04	0.02	NS
Ro52-2	100	100	100	100	100	NS	NS	NS	NS	NS	NS	NS	NS	NS
Ro52-3	0	0	0	0	0	NS	NS	NS	NS	NS	NS	NS	NS	NS
Ro52-4	27.9	40.0	57.1	33.3	6.7	NS	0.014	NS	NS	NS	NS	0.025	0.001	NS
Ro52-5	41.9	60.0	57.1	40	40.0	NS	NS	NS	NS	NS	NS	NS	NS	NS

SSc, systemic sclerosis; SjS, Sjögren's syndrome; SLE, systemic lupus erythematosus; PBC, primary biliary cholangitis. Significant p-values are indicated in bold.