| <30 | (7 cases) | ≥30 | (18 cases) | p value | |
| mean | SD | mean | SD | ||
| age | 47.0 | 14.0 | 45.8 | 15.1 | 0.952 |
| BMI | 24.1 | 6.3 | 27.0 | 4.5 | 0.146 |
| SNA | 81.6 | 3.2 | 81.3 | 3.9 | 0.952 |
| SNB | 79.8 | 2.5 | 77.6 | 3.6 | 0.096 |
| PAS | 13.7 | 4.8 | 12.8 | 5.5 | 0.565 |
| MPH | 16.2 | 5.9 | 20.0 | 7.3 | 0.204 |
| UAL | 79.4 | 5.1 | 84.5 | 6.1 | 0.074 |
| PAS × UAL | 1088.3 | 382.8 | 1080.7 | 475.9 | 0.832 |