Figure 1.

Raw data plots illustrating the yearly change in bone mineral density (BMD) measurements in two independent rheumatoid arthritis cohorts which were caterogized by anti–citrullinated protein antibody (ACPA) status. The Dutch cohort (A and B) and the Swedish cohort (C and D) of ACPA‐positive and ACPA‐negative patients received dual x‐ray absorptiometry (DXA) assessments at the lumbar spine and left hip at the indicated time points. Values below the graphs represent the number of patients with available DXA scans at each given time point in the ACPA‐positive and the ACPA‐negative group. Results are shown as the mean with error bars showing the 95% confidence intervals for both groups at the given time points.