Table 1.
Demographic and clinical characteristics of the cohort of patients with untreated newly diagnosed rheumatoid arthritis (RA).
| Characteristic | Early RA (no = 70) |
|---|---|
| Women, no (%) | 47 (69) |
| Age, yr | 55 (42–64) |
| BMI, kg/m2 | 25 (23–28) |
| CRP, mg/L | 9 (4–31) |
| ESR, mm/hour | 24 (12–38) |
| SJC28 | 9 (5–12) |
| TJC28 | 9 (4–13) |
| DAS28-CRP | 5 (4–6) |
| DAS28-ESR | 5 (5–6) |
| CDAI | 28 (22–38) |
| ACPA+, no (%) | 57 (81%) |
| RF+, no (%) | 48 (69%) |
| Symptom Duration (months) | 5 (3–8) |
| Smoking, no (%) * | 15 (22) |
Data shown as median (interquartile range), unless noted as no (%) in which case they are shown as number (percentage). * Defined as current daily smoking. Abbreviations: BMI, body-mass index; CRP, C-reactive protein; ESR, erythrocyte sedimentation rate; SJC28, swollen joint counts of 28; TJC28 tender joint counts of 28; DAS28, disease activity score in 28 joints; CDAI, Clinical Disease Activity Index; ACPA, anti–citrullinated protein antibody; RF, rheumatoid factor.