Figure 1From: The association between C-reactive protein and the likelihood of progression to joint replacement in people with rheumatoid arthritis: a retrospective observational study Surgery-free survival by mean CRP thirtile (low [<8.03 mmol/L], intermediate [8.03 to 18.32 mmol/L], and high [>18.32 mmol/L]) standardised for age, and average BMI. Back to article page