Serum C-reactive protein concentrations divided by rs1205 genotype at baseline. Serum C-reactive protein (CRP) concentrations of 313 patients with early rheumatoid arthritis at their time of diagnosis according to rs1205 genotype. Circles indicate individual serum CRP concentrations. The boxes indicate geometric means and 95% CIs calculated from linear regression analysis corrected for age, sex and treatment. *P <0.05.