Clinical characteristics of patients with RA (n = 14: 11 women).
| Disease duration, yrs | 12.7 ± 2.7 |
| RADAI-5 score (0–10) | 2.94 ± 0.33, range 0.8–6 |
| ESR, mm/h | 22.9 ± 3.0, range 6–41 |
| Antirheumatoid medication (no. of patients). | |
| Methotrexate | 11 |
| Sulfasalazine | 1 |
| Etanercept + methotrexate | 2 |
| Prednisolone (dose range 1–7.5 mg/day) | 4 |
| NSAID | 5 |
Results presented as mean ± SEM. RADAI: RA Disease Activity Index; ESR: erythrocyte sedimentation rate; NSAID: nonsteroidal antiinflammatory drug.