Inter- and intrarater variance of all three scoring systems (ASspiMRI-c, Berlin x ray score, and SASSS) used to evaluate chronic spinal changes in AS
| Interrater Variance | Intrarater Variance | Variance between patients | |
|---|---|---|---|
| *All three segments. | |||
| CS, cervical spine; TS, thoracic spine; LS, lumbar spine. | |||
| ASspiMRI-c | |||
| CS | 8.49 | 4.34 | 47.80 |
| TS | 27.50 | 11.2 | 96.12 |
| LS | 5.49 | 2.99 | 19.79 |
| Spine* | 70.54 | 36.74 | 341.94 |
| Berlin score | |||
| CS | 6.41 | 3.12 | 75.12 |
| TS | 17.19 | 5.78 | 72.95 |
| LS | 1.72 | 1.49 | 45.47 |
| Spine* | 22.59 | 17.61 | 541.70 |
| SASSS | |||
| CS | 5.67 | 3.09 | 74.34 |
| TS | 23.93 | 10.77 | 104.18 |
| LS | 2.84 | 7.16 | 69.08 |
| Spine* | 75.34 | 34.2 | 702.77 |