Variables related with the evolution of disease activity in patients with Early Arthritis.

Coeff: coefficient; CI: confidence interval; DO: disease onset; RF: rheumatoid factor; ACPA: anti-cyclic citrullinated peptide antibodies; n.s.: not significant; n.i.: not included. Multivariable analysis model 1 includes the effect of DMARD treatment at each visit whereas in model 2, the treatment was not considered.