| ESDs | |||||
| Projection | N | Mean ± SD | Min | Max | p-value |
| AP | 39 | 0.81 ± 0.48 | 0.29 | 2.90 |
|
| PA | 11 | 0.96 ± 0.34 | 0.46 | 1.47 | 0.445 |
| Total | 50 | 0.89 ± 0.41 | 0.28 | 2.19 |
|