Baseline characteristics of the study population
| Characteristics | |
| Age yrs | 45.0±9.9 |
| Females | 2 (0.06) |
| BMI kg·m−2 | 29.9±6.3 |
| RDI events·h−1 | 26.9±18.3 |
| RDI supine events·h−1 | 28.13±27.7 |
| Neck circumference cm | 41.2±3.4 |
| Sa,O2 | 91.8±2.6 |
| % of time O2 <90% | 18.3±22.1 |
| ESS | 8.0±4.0 |
| Baseline Calgary SAQLI | 4.3±1.2 |
Data are presented as mean±sd and n (%). BMI: body mass index; RDI: respiratory disturbance index; Sa,O2: arterial oxygen saturation; ESS: Epworth Sleepiness Scale; SAQLI: Sleep Apnea Quality of Life Index.