Table 2.
Student's t-test for significance for NOP, RPP, RGP, and HOP airways in T12, T23, and T13.
| Variable (mm2) | Total patients | |||
|---|---|---|---|---|
| Mean | SD | P value | ||
| NOP | T12 | -35.7 | 74.51 | 0.004∗ |
| T23 | 41.6 | 76.27 | 0.001∗ | |
| T13 | 5.9 | 95.17 | 0.696 | |
| RPP | T12 | -17.6 | 115.03 | 0.338 |
| T23 | -14.5 | 101.48 | 0.372 | |
| T13 | -32.1 | 117.63 | 0.092 | |
| RGP | T12 | -15.5 | 161.43 | 0.546 |
| T23 | -16.7 | 135.08 | 0.440 | |
| T13 | -32.2 | 148.92 | 0.179 | |
| HOP | T12 | -116.2 | 121.98 | <0.001∗ |
| T23 | 81.1 | 142.68 | 0.001∗ | |
| T13 | -35.1 | 141.77 | 0.126 | |
T12: immediate surgical changes; T23: postoperative stability; T13: over 1-year surgical change; NOP: nasopharyngeal; RPP: retropalatal pharyngeal; RGP: retroglossal pharyngeal; HOP: hypopharyngeal. ∗Significant P < 0.05.