Table 4.
Upper airway dimensions without and with MAD in situ of the MAD-H group and the MAD-S group
| MAD-H group (n = 16) | MAD-S group (n = 15) | Baseline MAD-H vs MAD-S | Within-subjects effect (Baseline vs follow-up in the total group) | Interaction effect a (MAD-H vs MAD-S in treatment effect) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Baseline | follow-up | Baseline | follow-up | P | F | P | F | P | |
| Primary outcome | |||||||||
| CSAmin (mm2) | 54.8 ± 36.9 | 75.6 ± 50.4 | 58.5 ± 29.3 | 87.8 ± 59.1 | 0.50 | 9.13 | 0.01* | 0.30 | 0.59 |
| Secondary outcomes | |||||||||
| A-P (mm) | 4.6 ± 2.1 | 5.0 ± 2.4 | 4.4 ± 1.7 | 5.3 ± 1.9 | 0.77 | 3.37 | 0.08 | 0.35 | 0.56 |
| La (mm) | 11.4 ± 4.7 | 15.4 ± 5.1 | 13.1 ± 4.6 | 16.2 ± 5.8 | 0.32 | 16.74 | < 0.01* | 0.12 | 0.74 |
| L (mm) | 67.0 ± 9.6 | 65.6 ± 9.9 | 65.9 ± 8.0 | 64.4 ± 8.8 | 0.59 | 4.30 | 0.05 | 0.00 | 0.99 |
| V (cm3) | 10.9 ± 3.4 | 12.2 ± 5.5 | 11.4 ± 5.4 | 12.8 ± 5.7 | 0.75 | 3.42 | 0.08 | 0.10 | 0.75 |
Data are shown as means ± standard deviations (SD); a: all outcome variables were controlled for age; *: significant difference after Bonferroni-Holm correction
CSAmin minimum cross-sectional area of the upper airway; A-P anterior–posterior dimension of the CSAmin; La lateral dimension of the CSAmin; L length of the upper airway; V upper airway volume