Total (n=107) ACPA + (n=70) ACPA – (n=37)
P Value
Age (mean year) 55.94±14.11 55.13±13.64 57.49±15.02 0.414
Gender (male/female) 26/81 16/54 10/27 0.632
Duration (months) 24 (12,108) 60 (17,183) 13 (5,36) 0.000
RF-positive 57.94% 82.86% 10.81% 0.000
ESR (mm/h) 32 (14,60) 33 (14.5,60) 29 (13.5,57.5) 0.692
CRP (mg/dl) 1.86 (0.51,5.22) 1.565 (0.5,4.37) 2.46 (0.61,7.72) 0.250
DAS28 5.84 (4.41,7.59) 6.62 (4.13,7.77) 5.64 (4.5,6.71) 0.187
Bone erosion 28.95% (n=22/76) 38% (n=19/50) 11.54% (n=3/26) 0.016