Table 1.
Demographic data of human subjects in this tudy
| RA (n=20) | HA (n=20) | |
|---|---|---|
| Sex (male/female) | 10/10 | 10/10 |
| Age, mean (range) | 42.5 (29-58) | 41.6 (27-57) |
| Disease duration (y), mean (range) | 6.3 (2-15) | - |
| Smoking, number (%) | 2 (10%) | 2 (10%) |
| ESR (mm), mean | 54 ± 16.6 | 15.9 ± 6.5 |
| CRP (mg/dL), mean | 3.8 ± 1.5 | 0.8 ± 0.6 |
| Positive rheumatoid factor, n (%) | 17 (85%) | 0 |
| Positive anti-CCP antibody, n (%) | 12 (60%) | 0 |
| Medication, n (%) | 0 | 0 |
RA: Rheumatoid arthritis. HA: Healthy subjects. ESR, erythrocyte sedimentation rate; CRP, C-reactive protein; anti-CCP, anti-cyclic citrullinated peptide antibodies.