Characteristics of patients demonstrating velopharyngeal or oropharyngeal (exclusive or primary) collapsing sites according to BAMPS
| Site of obstruction | p Value | ||
| Velopharynx | Oropharynx | ||
| Complete responder (n=14) | 3 | 11 | 0.03 |
| Partial responder (n=4) | 1 | 3 | |
| Failure (n=11) | 8 | 3 | |
| Age (years) | 51±10 | 50±12 | 0.81 |
| Gender (male/female) | 10/2 | 10/7 | 0.23 |
| Neck circumference (cm) | 38.7±3.2 | 37.7±3.1 | 0.39 |
| Baseline BMI (kg/m2) | 27.1±2.4 | 28.1±5.1 | 0.51 |
| Baseline AHI (n/h) | 33.9±21.9 | 27.9±10.9 | 0.40 |
| Baseline AHI <30 n/h (%) | 58.3 | 41.2 | 0.46 |
| SDB position dependency (%) | 33.3 | 23.5 | 0.38 |
| Skeletal class I (n) | 6 | 6 | 0.86 |
| Skeletal class II (n) | 5 | 9 | |
| Skeletal class III (n) | 1 | 2 | |
AHI, apnoea–hypopnoea index; BAMPS, bilateral anterior magnetic phrenic stimulation; BMI, body mass index; SDB, sleep-disordered breathing.