Table 1

 Baseline characteristics of the 183 patients with early rheumatoid arthritis

Continuous variables are expressed as means (SD).
Anti-CCP, antibodies against cyclic citrullinated peptide; anti-IL1α, antibodies against interleukin 1α; COMP, cartilage oligomeric matrix protein; ESR, erythrocyte sedimentation rate; Larsen, Larsen radiographic score44; RF, rheumatoid factor; U, units.
Age at onset (years)51 (12.4)
Female/male (n)116/66
Presence of “shared epitope” (%)85
C reactive protein (mg/l)27 (33)
ESR (mm/h)36 (28)
COMP (U/l)11.9 (3.7)
Larsen at baseline (U)8 (9)
IgG RF positivity (%)67
IgA RF positivity (%)78
IgM RF positivity (%)79
Anti-CCP positivity (%)80
Anti-IL1α positivity (%)22