Disease-related factors in patients. Data are expressed as mean ± SD when normally distributed and as median (25–75%) when non-normally distributed.
| Disease duration, yrs | 12.5 (11.0–14.1) |
| Rheumatoid factor-positive, n (%) | 48 (98) |
| ACPA-positive, n (%) | 39 (80) |
| DAS28 score | 3.09 ± 1.26 |
| hsCRP, mg/l | 4.5 (2.0–15.6) |
| HAQ score (range 0–3) | 0.18 (0.0–0.64) |
| Modified Sharp-van der Heijde score | 19 (9.0–39) |
| Currently using DMARD, n (%) | 43 (88) |
| Currently using methotrexate, n (%) | 31 (63) |
| Currently using biologicals, n (%) | 12 (24) |
| Currently using prednisolone, n (%) | 7 (14) |
| Currently using NSAID, n (%) | 29 (59) |
ACPA: anticitrullinated protein antibodies; DAS28 score: disease activity score for 28 joint indices; hsCRP: high sensitivity C-reactive protein; HAQ: Health Assessment Questionnaire; DMARD: disease-modifying anti rheumatic drugs; NSAID: nonsteroidal antiinflammatory drugs.