Table 4: Intraclass correlation coefficient between the readers (rheumatologist vs. radiologist)
| Scores | ICC | 95% CI | F - test | Sig. |
| Total SHS rheum/rad | 0.875 | 0.78 - 0.86 | 8.0 | < 0.0001 |
| Total SENS rheum/rad | 0.77 | 0.6 - 0.87 | 4.4 | < 0.0001 |
| Erosions HF rheum/rad | 0.62 | 0.35 - 0.77 | 2.63 | < 0.0001 |
| JSN HF rheum/rad | 0.77 | 0.6 - 0.86 | 4.3 | < 0.0001 |
SHS= Sharp van der Heijde RTG Score, SENS= Simple Erosion Narrowing Score, Rheum=Rheumatologist, Rad= Radiologist, JSN= Joint Space Narrowing.