Table 1 Baseline characteristics
Baseline characteristics | Value in study population (n = 163) |
|---|---|
Age in years, mean ± SD | 51 ± 11 |
Female sex, n (%) | 121 (74%) |
Arthralgia duration in months, median (IQR) | 13 (6–36) |
Number of reported painful joints, median (IQR) | 8 (4–19) |
Tender joint count (53 joints), median (IQR) | 1 (0–5) |
VAS pain in mm (0–100), mean ± SD | 35 ± 25 |
Antibody status | |
 ACPA negative, RF positive, n (%) | 72 (44%) |
 ACPA positive, RF negative, n (%) | 44 (27%) |
 ACPA positive, RF positive, n (%) | 47 (29%) |