Table 1 Characteristics of patients with RA and healthy controls (HC)
RA (n = 111) | HC (n = 81) | P | |
|---|---|---|---|
Age, years* | 63.0 (53.3–66.0) | 57.0 (49.8–64.0) | 0.004 |
Women, n (%) | 91 (82.0) | 60 (74.1) | 0.21 |
Duration of disease, years* | 5.0 (3.0–12.0) | ||
bDMARDs†, n (%) | 77 (69.4) | ||
CDAI* | 3.4 (1.4–8.3) | ||
HAQ score* | 0.13 (0–0.75) | ||
Steinbrocker’s stage, n (%) | |||
I | 18 (16.2) | ||
II | 35 (31.5) | ||
III | 15 (13.5) | ||
IV | 43 (38.7) | ||
Smoking, n (%) | 34 (30.6) | NA | |
Autoantibodies, n (%) | |||
RF (+)/RF (−) | 67 (60.4)/44 (39.6) | NA | |
Anti-CCP2 (+)/anti-CCP2 (−)/NA | 77 (69.4)/28 (25.2)/6 (5.4) | NA | |