From: Autoimmune response to U1 small nuclear ribonucleoprotein (U1 snRNP) associated with cytomegalovirus infection
CMV-positive
Patient's
diagnosis
Autoantibody
%
No./no. tested
P
SLE
Sm+
63
12/19
Sm–
57
12/21
ns
RNP+
74
17/23
RNP–
41
7/17
0.05
MCTD
50
1/2
35
6/17
37
7/19
DM/PM
NA*
60
9/15