Table 3 Comparison of autoantibodies and radiographic erosions
Anti-CCP (+) n = 154Anti-CCP (−) n = 60
Erosion +86 (55.84%)Erosion (+)12 (20%)
Erosion −68 (44.15%)Erosion (−)48 (80%)

  • A total of 19 anti-CCP (+) had no corresponding erosion data; 8 anti-CCP (−) had no corresponding erosion data; κ = 0.279, p<0.001.

  • CCP, cyclic citrullinated peptide.