Data at baseline compared with data after OA use
| Parameter | Baseline (mean±SD) | With OA (mean±SD) | p Value |
|---|---|---|---|
| AHI (events/h) | 18.4±11.5 | 7.0±6.5 | <0.001 |
| ODI (events/h) | 6.2±7.5 | 2.8±3.0 | <0.01 |
| Mean sat (%) | 94.7±1.4 | 95.0±1.3 | 0.254 |
| Min sat (%) | 85.1±6.8 | 85.7±6.6 | 0.658 |
| TST (uu:mm:ss) | 06 : 02 : 15±1 : 29 : 52 | 06 : 16 : 22±1 : 31 : 40 | 0.600 |
| % S1 in TST | 8.0±4.9 | 5.0±3.5 | 0.001 |
| % S2 in TST | 49.8±10.3 | 52.1±11.5 | 0.287 |
| % S3 in TST | 21.8±8.9 | 22.1±10.6 | 0.865 |
| % REM in TST | 20.2±6.5 | 20.8±6.2 | 0.607 |
| Arousal index (events/h) | 15.5±14.0 | 7.6±3.4 | 0.004 |
| ESS (/24) | 10.8±4.7 | 7.8±4.8 | <0.001 |
| Snoring index (0–10) | 6.5±2.6 | 2.4±2.3 | <0.001 |
| BMI (kg/m2) | 26.6±4.2 | 26.7±4.1 | 0.767 |
ESS, Epworth sleepiness scale; OA, oral appliance; ODI, Oxygen Desaturation Index; REM, Rapid Eye Movement; TST, total sleep time; AHI, apnoea/hypopnoea index.