| No. of subjects | Sagittal Ra | Coronal Ra | Total Ra |
Low group (0 - 2.9 mm) | 58 (56.3%) | 51.9 ± 17.4 | 61.8 ± 20.2 | 56.9 ± 17.0 |
Middle group (3 - 5 mm) | 28 (27.2%) | 53.4 ± 15.8 | 61.4 ± 11.4 | 57.4 ± 12.4 |
High group (>5 mm) | 17 (16.5%) | 53.1 ± 16.9 | 62.8 ± 21.0 | 57.9 ± 18.3 |