Table 1 Summary of results and statistical correlations.
Mean | Range | Male | Female | P value (sex) | |
|---|---|---|---|---|---|
The maximum tunnel diameter (mm) | 11.78 ± 1.47 | 8.60–16.60 | 12.73 ± 1.15 | 10.83 ± 1.11 | < 0.001 |
The maximum length (mm) | 94.87 ± 6.13 | 82.2–109.57 | 96.37 ± 6.15 | 93.37 ± 5.77 | < 0.01 |
∠α (°) | 34.11 ± 5.49 | 22.77–48.24 | 34.87 ± 5.31 | 33.35 ± 5.61 | 0.13 |
∠β (°) | 34.13 ± 3.47 | 21.23–42.86 | 34.94 ± 3.16 | 33.31 ± 3.6 | < 0.01 |
∠γ (°) | 37.09 ± 5.35 | 24.2–49.13 | 35.57 ± 4.74 | 38.6 ± 5.52 | < 0.01 |
AI (mm) | 25.32 ± 4.82 | 16.13–42.71 | 24.64 ± 4.02 | 25.99 ± 5.46 | 0.127 |
AS (mm) | 51.84 ± 5.66 | 36.82–67.17 | 51.78 ± 5.01 | 51.9 ± 6.28 | 0.914 |
AC (mm) | 14.48 ± 2.41 | 9.71–21.97 | 14.35 ± 2.05 | 14.62 ± 2.74 | 0.545 |
AN (mm) | 55.71 ± 5.8 | 41.39–69.33 | 59.5 ± 3.44 | 51.93 ± 5.19 | < 0.001 |
∠LPM (°) | 43.86 ± 4.67 | 32.20–65.93 | 43.23 ± 3.87 | 44.49 ± 5.31 | 0.14 |
∠LPM’ (°) | 34.32 ± 3.05 | 27.70–40.77 | 35.06 ± 3 | 33.58 ± 2.94 | < 0.01 |
Dv1 (mm) | 71.72 ± 14.56 | 38.03–111.9 | 69.32 ± 12.05 | 74.13 ± 16.46 | 0.07 |
Dh1 (mm) | 23.33 ± 12.58 | 0.70–84.44 | 21.8 ± 10.25 | 24.87 ± 14.47 | 0.182 |