| Rheumatoid arthritis (n = 20) | Non-inflammatory controls (n = 7) | Significance |
---|---|---|---|
Age (years) | 56 (48–64) | 58 (46-69) | ns |
Female, n (%) | 9 (45) | 3 (42.9) | ns |
ESR (mm/h) | 46.5 (21–62.5) | – |  |
CRP (mg/l) | 26 (7.5–44.5) | – |  |
DAS28ESR | 5.52 (4.47–6.67) | – |  |
Symptom duration (weeks) | 9 (4.3–36) | – |  |
IgM-RF positive, n (%) | 9 (45) | – |  |
ACPA positive, n (%) | 12 (60) | – |  |
RhF and ACPA both positive, n (%) | 9 (45) | – |  |