Demographic, clinical, laboratory and US data of the study patients – data are either n (%), mean ± SD or median (IQR)
| Parameters | EIA (n=30) | ERA (n=43) | p |
|---|---|---|---|
| Gender (Female) | 17 (56.7%) | 27 (62.8%) | 0.816 |
| Age | 41.70±15.58 | 55.47±13.71 | <0.001 |
| Mean duration of symptoms | 3.16±3.22 | 3.54±3.58 | 0.556 |
| CRP (mg/l) | 7.85 (1.99–26.20) | 18.62 (3.57–14.68) | 0.848 |
| ESR (mm/h) | 26.00 (10.00–44.75) | 34.53 (14–51) | 0.238 |
| RF (IU/ml) | 10.00 (7.85–14.56) | 142.75 (35.14–201.74) | <0.001 |
| ACPA (IU/ml) | 5.00 (0.5–5.00) | 153.96 (46.20–212.00) | <0.001 |
| DAS28 | 4.00 (3.35–5.05) | 4.89 (4.31–5.60) | <0.001 |
| SDAI | 17.82 (12.28–26.37) | 27.96 (20.92–34.61) | <0.001 |
| US evaluation | 0 (0–3) | 5 (3–7) | <0.001 |