TABLE 2. Mean comparison of mandibular measurements between apneic and normal subjects.
| Mandibular Measurements (mm) | Apneic |
Normal |
% Diff. | p* | ||
|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | |||
| Total (Apneic n = 54 †, Normal n = 55) | ||||||
| Mandibular Body Length | 86.79 | 4.55 | 88.01 | 5.95 | −1.4 | 0.25 |
| Mandibular Width | 90.21 | 6.12 | 88.12 | 7.26 | 2.3 | 0.12 |
| Mandibular Depth | 71.75 | 5.85 | 73.08 | 6.13 | −1.9 | 0.26 |
| Men (Apneic n = 26†, Normal n = 27) | ||||||
| Mandibular Body Length | 88.42 | 4.78 | 91.29 | 4.58 | −3.2 | 0.04 |
| Mandibular Width | 94.83 | 3.70 | 92.50 | 6.99 | 5.4 | 0.17 |
| Mandibular Depth | 70.35 | 5.43 | 73.98 | 4.89 | −5.2 | 0.02 |
| Women (Apneic n = 28, Normal n = 28) | ||||||
| Mandibular Body Length | 85.52 | 4.00 | 84.84 | 5.42 | 0.8 | 0.60 |
| Mandibular Width | 84.59 | 5.14 | 82.14 | 4.54 | 2.9 | 0.04 |
| Mandibular Depth | 72.85 | 6.02 | 72.21 | 7.12 | 0.9 | 0.72 |
Significant differences (p < 0.05) presented in bold. Mandibular body length = average left and right mandibular body length. % Diff. = % Difference = [(apneic - normal)/apneic]*100. n = number of subjects. SD = standard deviation.
*
p value for student’s t-test.
†
mandibular measurements were unable to be obtained in one subject due to MRI artifacts.