Baseline characteristics of patients with rheumatoid arthritis included in the study (n = 282).
| Characteristics | N (%) or Mean ± SD |
|---|---|
| Female | 234 (83) |
| Age, yrs | 59.40 ± 11.93 |
| Race/ethnicity | |
| White, non-Hispanic | 25 (9) |
| Asian, non-Hispanic | 83 (29) |
| Black, non-Hispanic | 22 (8) |
| Hispanic | 152 (54) |
| Previous smoker | 31 (11) |
| Current smoker | 28 (10) |
| Obese (BMI ≥ 30 kg/m2) | 106 (38) |
| Prescribed biologic or small-molecule DMARD | 95 (34) |
| Prescribed synthetic DMARD | 256 (91) |
| RF-positive, n = 280 | 221 (79) |
| Anti-CCP, n = 280 | 249 (89) |
| Clinical Disease Activity Index (range 0–76) | 15.13 ± 11.61 |
| PtGA (range 0–10) | 4.73 ± 2.75 |
| PGA (range 0–10) | 2.71 ± 2.30 |
| Swollen joint count (0–28) | 4.50 ± 5.29 |
| Tender joint count (0–28) | 3.70 ± 5.45 |
| CRP, mg/l | 10.03 ± 17.63 |
BMI: body mass index; DMARD: disease-modifying antirheumatic drugs; RF: rheumatoid factor; anti-CCP: anticyclic citrullinated peptide; PtGA: patient’s global assessment; PGA: physician’s global assessment; CRP: C-reactive protein.