Table 9.
Adjusted comparisons of craniofacial volume and areas between Icelandic and Chinese patients matched for age, gender and ODI
| Variable | Model 1: age, ODI, height Adjusted mean (95% CI) | P | Model 2: age, ODI, BMI Adjusted mean (95% CI) | P | ||
|---|---|---|---|---|---|---|
| Icelandic | Chinese | Icelandic | Chinese | |||
| Intramandibular volume (mm3) | 181984 (176470, 187498) | 175890 (167810, 183970) | 0.2249 | 182813(176867, 188759) | 173659 (165358, 181960) | 0.0654 |
| Nasooropharyngeal area (mm2) | 8339 (8153, 8525) | 8711 (8442, 8981) | 0.0344 | 8499 (8295, 8703) | 8399 (8112, 8686) | 0.5861 |
| Oropharyngeal area (mm2) | 5876 (5740, 6011) | 6224 (6029, 6420) | 0.0062 | 5974 (5828, 6120) | 6032 (5826, 6239) | 0.6600 |
| Nasopharyngeal area (mm2) | 2465 (2399, 2531) | 2487 (2390, 2583) | 0.7317 | 2526 (2456, 2597) | 2367 (2266, 2467) | 0.0140 |
Bonferroni corrected significance level: p < 0.0125 (equals 0.05/4). Nasopharyngeal area: Nasion-anterior Nasal Spine-Basion-Nasion (Na-ANS-Ba-Na); oropharyngeal area: anterior Nasal Spine-Menton-Third cervical vertebrae-Basion-Anterior Nasal Spine (Na-ANS-Me-C3-Ba-Na); Naso-oropharyngeal area: Na-ANS-Me-C3-Ba-Na. Significant p-values are given in bold.
BMI, body mass index, CI, confidence interval, ODI, oxygen desaturation index.