TABLE 2.

Selected results for anti-Sm-positive control samples

Serum no.	ID no.	Diagnosisa	Euroimmun Sm (RE)b (cutoff = 20)	QuantaLite Sm (U) (cutoff = 40)	QuantaPlex Sm (ratio) (cutoff = 1)	Varelisa RecombiANA Profile (ratio) (cutoff = 1)	Varelisa Sm antibodies (U/ml) (cutoff = 13)
99	25510	RA	1.2	25.5	0.1	0.5	0.3
102	25513	PM/DM	1.0	6.7	7.6	0.3	3.4
105	25516	MCTD	87.9	118.8	1.1	4.8	3.0
107	25518	MCTD	14.4	37.5	0.3	1.4	1.0
108	25519	MCTD	6.7	52.0	0.9	2.7	0.0
110	25521	MCTD	87.4	111.7	1.5	4.2	0.5
112	25523	MCTD	21.6	34.1	0.6	0.3	0.0
118	25529	MCTD;SLE	11.8	30.4	0.5	0.5	2.3
121	25532	MCTD	7.4	26.9	0.3	3.5	2.6
123	25534	MCTD	10.5	41.7	0.6	2.3	1.1
126	25537	MCTD	7.2	41.4	0.3	0.3	3.2
128	25539	MCTD	4.2	67.1	0.5	3.7	0.7
129	25540	MCTD	118.5	132.4	2.4	3.1	4.1
132	25543	MCTD	12.8	42.7	0.3	2.3	2.4
133	25544	MCTD;SLE	136.0	153.7	7.9	5.4	9.9
137	25448	SSc	72.2	105.3	1.2	2.8	2.2
145	25456	MCTD	8.4	30.9	0.3	1.5	1.1
No. positive			6	10	6	12	0

^aRA, rheumatoid arthritis. Also see Table 1, footnote a.

^bRE, relative units.