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Table 2 Frequency of autoantibodies in IgM anti-cytomegalovirus (CMV)(+) patients versus IgM anti-CMV(-) patients

From: Reduced IgG anti-small nuclear ribonucleoprotein autoantibody production in systemic lupus erythematosus patients with positive IgM anti-cytomegalovirus antibodies

  Anti-CMV IgM(+) patients Anti-CMV IgM(-)IgG(+) patients
n 20 39
U1RNP 37% (7/20) 31% (12/39)
Sm 0% (0/20) 15% (6/39)
Sm/U1RNP 0% (0/7) 50% (6/12)*
Ribosomal P 5% (1/20) 10% (4/39)
RNA helicase A 15% (3/20) 26% (10/39)
Ro 35% (7/20) 38% (15/39)
La 15% (3/20) 8% (3/39)
Ku 10% (2/20) 5% (2/39)
Su 30% (6/20) 23% (9/39)
RNA polymerase II 10% (2/20) 8% (3/39)
U1RNP/Sm ELISA > 25 units 0% (0/20) 28% (11/39)
  1. Sm/U1RNP, prevalence of anti-Sm among anti-U1RNP-positive patients. *P = 0.04. P = 0.0106.