End of treatment polysomnography data
| Characteristic | CPAP (mean±SEM) | Placebo (mean±SEM) | p Value |
| Sleep apnoea | |||
| AHI (events/h) | 6.9±2.1 | 40.0±5.0 | <0.00001 |
| ODI (events/h) | 5.2±1.9 | 38.7±4.1 | <0.00001 |
| SaO2-T90 (%TST) | 1.0±0.4 | 9.7±2.2 | <0.0005 |
| Min SaO2 (%) | 89±1.4 | 78±1.6 | <0.00001 |
| Treatment compliance (h/night) | 4.4±2.2 | 3.4±2.3 | <0.05 |
| ESS | 7.6±0.8 | 9.4±0.7 | 0.1 |
AHI, Apnoea Hypopnoea Index; CPAP, continuous positive airway pressure; ESS, Epworth sleepiness score; Min SaO2, minimum arterial oxygen saturation; ODI, Oxygen Desaturation Index; SaO2-T90 (%TST), percentage of total sleep time spent with arterial oxygen saturation less than 90%.