| Chronic snore | 30 (53.6) |
| Witnessed apnoeas | 9 (16.1) |
| ESS score | 6.8±4.14 |
| BMI kg·m−2 | 26.8±4.19 |
| AHI events per h | 13.6±17.3 |
| AHI ≥5 | 34 (60.7) |
| AHI ≥10 | 20 (35.7) |
| AHI ≥15 | 17 (30.3) |
| AHI ≥30 | 8 (14.3) |
| Basal saturation % | 96.3±1.9 |
| Mean saturation % | 94.1±2.5 |
| ODI3% events per h | 14.4±17.9 |
| ODI4% events per h | 8.28±13.5 |
| Tsat90 % | 8.2±19.6 |
| Minimum saturation % | 83.9±8.1 |
Date are presented as n (%) or mean±sd. ESS: Epworth Sleepiness Scale; BMI: body mass index; AHI: apnoea–hypopnea index; ODI3%: oxygen desaturation index at 3%; ODI4%: oxygen desaturation index at 4%; Tsat90: night time spent with oxygen saturation <90%.