Figure 3

Associations of age (A) and myocardial fibrosis (B) with average citrullination, according to RA status. For age, the average linear association is depicted (least-squares estimate) for the RA (β = 0.044; P < 0.05) and control (β = 0.032; P < 0.05), a difference in slopes that was significant (P value for interaction = 0.040). Dashed lines in panel A indicate 95% confidence intervals. For panel B, bars indicate means with fences representing the standard error of the mean.