| Follow-up CompSA | No follow-up CompSA | p-value | |
| Subjects n | 30 | 406 | |
| Age yrs | 61.0±9.1 | 55.2±11.3 | 0.005* |
| BMI kg·m−2 | 30.8±3.9 | 32.4±5.7 | 0.290 |
| ESS score | 7.3±3.9 | 6.5±3.7 | 0.301 |
| Males | 73.3 | 88.9 | 0.020* |
| CPAP adherence h·night−1 | 4.4±1.7 | 5.0±2.0 | 0.192 |
| Hypertension | 76.7 | 56.2 | 0.028* |
| Coronary artery disease | 40.0 | 8.4 | <0.001* |
| Congestive heart failure | 0.0 | 0.7 | 1.000 |
| Atrial fibrillation | 13.3 | 6.7 | 0.256 |
| Stroke | 3.2 | 6.7 | 0.276 |
| Opioids | 0.0 | 1.0 | 0.751 |
| Benzodiazepine | 3.3 | 1.0 | 0.301 |
| UPPP | 3.3 | 0.2 | 0.133 |
| Pacemaker | 3.3 | 0.7 | 0.249 |
Data are presented as mean±sd or %, unless otherwise stated. BMI: body mass index; ESS: Epworth Sleepiness Scale; CPAP: continuous positive airway pressure; UPPP: uvulopalatopharyngoplasty. *: p<0.05, which was considered significant.