Table 4. Kyphosis/lordosis and pelvic parameter.
| Reader 1 | Reader 2 | absolute difference | ||
|---|---|---|---|---|
| T1/T12 kyphosis | Mean ± SD | 37.0 ± 13.65 | 39.1 ± 14.21 | 4.1 ± 4.33 |
| T4/T12 kyphosis | Mean ± SD | 33.0 ± 15.02 | 33.6 ± 15.39 | 3.0 ± 3.94 |
| L1/L5 lordosis | Mean ± SD | 42.4 ± 12.62 | 44.8 ± 13.44 | 3.8 ± 4.95 |
| L1/S1 lordosis | Mean ± SD | 53.7 ± 13.81 | 55.7 ± 14.63 | 4.1 ± 6.82 |
| Pelvic incidence | Mean ± SD | 44.0 ± 11.48 | 46.3 ± 11.14 | 3.1 ± 2.13 |
| Sacral slope | Mean ± SD | 36.0 ± 9.16 | 38.0 ± 8.86 | 2.7 ± 1.76 |
| Sagittal pelvic tilt | Mean ± SD | 8.5 ± 7.28 | 8.7 ± 7.20 | 1.0 ± 1.34 |
| Lateral pelvic tilt | Mean ± SD | 4.7 ± 3.25 | 4.7 ± 3.53 | 0.9 ± 0.73 |
The mean ± SD of the measured values for kyphosis and lordosis for each reader were assessed. In addition the absolute difference was determined.