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Table 2 Comparative frequency of FCGR3B copy number variants with rheumatoid factor and anti-cyclic citrullinated peptide autoantibodies

From: Low copy number of the FCGR3B gene and rheumatoid arthritis: a case-control study and meta-analysis

FCGR3B CN Rheumatoid factor Anti-CCP
  Positive Negative Positive Negative
< 2 19 (13.97%) 5 (11.11%) 7 (10.29%) 5 (10.87%)
2 106 (77.94%) 33 (73.33%) 52 (76.47%) 36 (78.26%)
> 2 11 (8.09%) 7 (15.56%) 9 (13.24%) 5 (10.87%)
Global test χ2 = 2.03, degrees of freedom = 2, P = 0.363 χ2 = 0.15, degrees of freedom = 2, P = 0.93
  1. Comparative frequency of Fc gamma receptor 3B (FCGR3B) copy number (CN) variants in rheumatoid arthritis patients positive and negative for rheumatoid factor and anti-cyclic citrullinated peptide (anti-CCP) autoantibodies. Data presented as n (%).