Table 3.
Adjusted comparisons of soft tissue volumes between Icelandic and Chinese patients matched for age, gender, and ODI
| Domain | 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 | ||||
| Total volumes* | Combined soft tissue (mm3) | 202871 (198010, 207733) | 184037 (177128, 190947) | <0.0001 | 203682 (197796, 209569) | 180454 (172970, 187939) | <0.0001 |
| Tongue (mm3) | 132661 (129488, 135835) | 116183(111650, 120715) | <0.0001 | 132929 (129306, 136553) | 114702 (109950, 119453) | <0.0001 | |
| Soft palate (mm3) | 9810 (9297, 10323) | 11652 (10920, 12383) | 0.0001 | 10224 (9630, 10817) | 10797 (10020, 11574) | 0.2079 | |
| Lateral walls (mm3) | 28103 (26801, 29406) | 29481 (27605, 31358) | 0.2429 | 28723 (27293, 30153) | 28083 (26085, 30081) | 0.6024 | |
| Fat pads (mm3) | 8629 (8175, 9082) | 6352 (5681, 7022) | <0.0001 | 8541 (8089, 8994) | 6522 (5863, 7181) | <0.0001 | |
| Epiglottis (mm3) | 1461 (1343, 1580) | 1436 (1261, 1612) | 0.8214 | 1491 (1367, 1615) | 1369 (1191, 1548) | 0.2711 | |
| Pterygoid (mm3) | 22275 (21257, 23294) | 19218 (17812, 20624) | 0.0003 | 22241 (21116, 23366) | 19102 (17668, 20536) | 0.0001 | |
| Partial volumes ‡ | Genioglossus (mm3) | 101302 (99118, 103486) | 91576 (88436, 94715) | <0.0001 | 101664 (99212, 104115) | 90383 (87055, 93710) | <0.0001 |
| Other tongue (mm3) | 31328 (29932, 32724) | 24812 (22774, 26850) | <0.0001 | 31395 (29866, 32925) | 24395 (22313, 26477) | <0.0001 | |
| RP lateral walls (mm3) | 14563 (13653, 15473) | 15235 (13927, 16543) | 0.4197 | 14695(13751, 15639) | 14929 (13599, 16259) | 0.7798 | |
| RG lateral walls (mm3) | 13567 (12806, 14329) | 14195 (13063, 15327) | 0.3936 | 14082 (13262, 14901) | 13153 (11933, 14372) | 0.2411 |
Significant p-values are given in bold.
AP, anteroposterior, CI, confidence interval, ODI, oxygen desaturation index, RG, retroglossal, RP, retropalatal.
*Bonferroni corrected significance level: p < 0.0071 (equals 0.05/7).
‡Bonferroni corrected significance level: p < 0.0125 (equals 0.05/4).