Variable | Extraction group (n = 120) | Non-extraction group (n = 40) | Extraction group vs Non-extraction group | ||||
---|---|---|---|---|---|---|---|
T0 Mean (SD) | T1 Mean (SD) | P | T0 Mean (SD) | T1 Mean (SD) | P | P | |
Oropharynx | |||||||
 Vol, mm3 | 16,123.7 (5510.6) | 17,782.1 (6366.4) | 0.000* | 16,445.1 (5616.7) | 16,621.2 (5626.2) | 0.808 | 0.163 |
 MCA, mm2 | 243.3 (112.6) | 266.7 (124.8) | 0.060 | 236.4 (104.9) | 233.9 (99.2) | 0.757 | 0.246 |
 PNS-AP | 27.7 (3.7) | 28.2 (2.7) | 0.002* | 28.2 (4.2) | 28.8 (3.6) | 0.182 | 0.062 |
 PNS-lateral | 37.8 (5.7) | 40.0 (6.8) | 0.000* | 38.9 (5.9) | 40.0 (5.7) | 0.08 | 0.613 |
 PNS-AP/ lateral | 0.72 (0.10) | 0.71 (0.10) | 0.551 | 0.73 (0.07) | 0.73 (0.08) | 0.645 | 0.912 |
 E-AP | 13.1 (3.2) | 13.2 (3.8) | 0.446 | 12.4 (3.6) | 12.6 (3.7) | 0.624 | 0.325 |
 E- lateral | 30.4 (2.9) | 31.3 (3.3) | 0.003* | 31.1 (3.5) | 30.9 (3.9) | 0.668 | 0.649 |
 E-AP/lateral | 0.41 (0.10) | 0.42 (0.10) | 0.701 | 0.40 (0.10) | 0.41 (0.11) | 0.392 | 0.575 |
Hyoid | |||||||
 H-Eb | 8.4 (1.7) | 8.5 (2.1) | 0.93 | 9.1 (2.6) | 8.7 (2.6) | 0.283 | 0.283 |
 H-Me | 44.2 (4.6) | 45.7 (5.7) | 0.002* | 45.9 (4.8) | 45.2 (4.9) | 0.384 | 0.014* |
 H-C3 | 27.6 (3.2) | 27.7 (3.2) | 0.151 | 27.9 (3.3) | 27.4 (3.7) | 0.252 | 0.189 |
 H-X | 8.8 (7.1) | 7.1 (7.0) | 0.005* | 7.8 (7.2) | 8.9 (7.1) | 0.257 | 0.014* |
 H-Y | 93.4 (5.6) | 93.8 (5.3) | 0.123 | 95.7 (6.7) | 93.8 (12.7) | 0.586 | 0.294 |