Table 1 Subject characteristics of RA patients and control in 2011
|  | RA (n = 177) | Control (n = 183) | p value | Effect size |
|---|---|---|---|---|
Women | 151 (85) | 154 (84) | 0.77 | 0.02 |
Age (years) | 61.0 (18.0) | 60.0 (16.0) | 0.64 | 0.02 |
Height (cm) | 155.8 (10.4) | 157.0 (10.7) | 0.012 | 0.13 |
Weight (kg) | 54.0 (13.3) | 54.8 (12.7) | 0.18 | 0.07 |
BMI (kg/m2) | 22.1 (4.8) | 22.3 (4.2) | 0.82 | 0.01 |
Smoking | 51 (29) | 26 (14) | 0.001 | 0.18 |
Drinking habits | 78 (44) | 94 (51) | 0.17 | 0.07 |
RF (IU/ml) | 43 (98) | 8 (3) | < 0.001 | 0.77 |
RF positive | 134 (76) | 20 (11) | < 0.001 | 0.65 |
Anti-CCP (U/ml) | 67.6 (86.3) | 0.6 (0.2) | < 0.001 | 0.81 |
Anti-CCP positive | 152 (86) | 5 (3) | < 0.001 | 0.84 |
RA duration (years) | 10.4 (15.5) | – | – | – |
csDMARD user | 162 (92) | – | – | – |
bDMARD user | 104 (59) | – | – | – |
GC user | 47 (27) | – | – | – |
ESR (mm/h) | 20 (25) | 8 (8) | < 0.001 | 0.41 |
MMP-3 (ng/ml) | 64.5 (66.6) | 43.0 (23.3) | < 0.001 | 0.36 |
hs-CRP (mg/l) | 0.11 (0.38) | 0.03 (0.05) | < 0.001 | 0.44 |
mHAQ-DI | 0.25 (0.88) | – | – | – |
TJC | 2 (5) | – | – | – |
SJC | 0 (2) | – | – | – |
Patient VAS | 28 (40) | – | – | – |
DAS28-ESR | 3.4 (2.1) | – | – | – |