Summary of joint evaluations by reader and reading categorised by change in erosion scores
| Reader 1, first reading n (%) | Reader 1, second reading n (%) | Reader 2, first reading n (%) | Reader 2, second reading n (%) | |
| Joint with a change | 419 (5.8%) | 269 (3.7%) | 213 (2.9%) | 98 (1.3%) |
| Positive change | 169 (2.3%) | 86 (1.2%) | 90 (1.2%) | 52 (0.7%) |
| Negative change | 250 (3.4%) | 183 (2.5%) | 123 (1.7%) | 46 (0.6%) |
| Joints with no change | 6836 (94.2%) | 6986 (96.3%) | 7042 (97.1%) | 7157 (98.6%) |
| All joints | 7255 | 7255 | 7255 | 7255 |
| Total erosion score, mean (SD), range | −0.76 (3.14), −14–21 | −0.31 (2.49), −15–8 | −0.71 (2.44), −12–15 | 0.08 (1.44), −8–7 |
Positive and negative change scores in the same patient.