Table 1.
Clinical characteristics of patients with early RA, established RA, and controls.
| Early RA | Established RA | OA | HC | |
|---|---|---|---|---|
| Sex (F/M) | 11/5 | 34/8 | 12/8 | 7/13 |
| Age (years) | 58.18 ± 16.19 | 56 ± 15.65 | 61.57 ± 13.11 | 43.21 ± 14.20 |
| Disease duration | <6 months | 8.81 ± 8.12 years | NA | 0 |
| Treatment | ||||
| Methotrexate | 0 | 10 | NA | 0 |
| Sulfasalazine | 0 | 2 | NA | 0 |
| Leflunomide | 0 | 24 | NA | 0 |
| Glucocorticoids | 0 | 16 | NA | 0 |
| Biologics | 0 | 13 | NA | 0 |
| Clinical character | ||||
| RF positivity (%) | 62.5 | 82.9 | NA | NA |
| ACPA positivity (%) | 62.5 | 71.8 | NA | NA |
| CRP (mg/L) | 3.83 ± 4.57 | 2.15 ± 2.80 | NA | NA |
| ESR (mm/h) | 66.57 ± 26.61 | 39.02 ± 31.91 | NA | NA |
| D-dimer (μg/mL) | 1426 ± 1598 | 604 ± 640 | NA | NA |
Data are expressed as the mean ± SD. ACPA, anti-citrullinated proteins antibodies; CRP, C reactive protein; ESR, erythrocyte sedimentation rate; HC, healthy controls; NA, not analyzed; OA, osteoarthritis; RA, rheumatoid arthritis; RF, rheumatoid factor.