Summary of patient characteristics (n = 241) and polysomnographic results
| Mean (SD) | Range | |
| Age (years) | 45 (11.3) | 19–80 |
| F/M | 53/192 | |
| Height (m) | 1.73 (0.10) | 1.44–1.96 |
| Weight (kg) | 92 (17.9) | 53–155 |
| Body mass index (kg/m2) | 30.8 (5.9) | 20–55 |
| Neck circumference (cm) | 40.3 (3.7) | 31–50 |
| Epworth scale | 10.8 (4.5) | 0–24 |
| Apnoea hypopnoea index (/h) | 25.6 (16.8) | 0–132 |