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Table 1 Characteristics of the population studied

From: No evidence for an association between the -871 T/C promoter polymorphism in the B-cell-activating factor gene and primary Sjögren's syndrome

Characteristic Value
Age (mean ± SD) 57.3 ± 12.1
Women/men (n) 156/6
No anti-SSA or anti-SSB autoantibodies (n [%]) 52 (32)
Anti-SSA autoantibody only (n [%]) 54 (33.4)
Anti-SSA and anti-SSB autoantibodies (n [%]) 56 (34.6)
Positive rheumatoid factor finding (n [%]) 89 (55)
Rheumatoid factor level (IU/l; mean ± SD) 183.6 ± 365
Serum IgG level (g/l; mean ± SD) 15 ± 7.2
Focus score ≥1 on labial salivary gland (n = 145; n [%]) 130 (90)
  1. SD, standard deviation.