Table 1 Baseline characteristics of ACPA+ and ACPA− treatment-naive patients with early RA
From: CCR6+ Th cell populations distinguish ACPA positive from ACPA negative rheumatoid arthritis
Characteristic | ACPA+ patients (n = 27) | ACPA− patients (n = 27) | p value |
|---|---|---|---|
DAS44 score (mean ± SD) | 3.12 ± 0.82 | 3.14 ± 0.96 | 0.89 |
RF positive n (%) | 21 (78) | 16 (59) | 0.07 |
Sex (female/male) | 19/8 | 18/9 | 1.0 |
Age (mean ± SD, years) | 48.2 ± 13.4 | 51.8 ± 13.8 | 0.31 |
Duration of complaints (mean ± SD, days) | 159.9 ± 87.2 | 179.1 ± 103.5 | 0.29 |
Erosions n (%) | 5 (19) | 5 (19) | 1.0 |
Tender joint count | 9.93 ± 7.23 | 9.00 ± 7.90 | 0.30 |
Swollen joint count | 6.63 ± 5.31 | 9.44 ± 6.67 | 0.02 |
ESR (mm/hr) | 27.6 ± 22.5 | 26.3 ± 24.1 | 0.49 |
CRP (mg/l) | 13.3 ± 30.3 | 11.1 ± 9.93 | 0.57 |
RF titer (IU/ml) | 163 ± 327 | 64.3 ± 157 | 0.01 |