Age, body mass index(BMI) and apnoea/hypopnoea index (AHI) of patients who improved, did not change, or worsened between baseline (T1) and follow-up (T2)
| AHI groups | p-value | |||
| Improved | Unchanged | Worsened | ||
| Subjects | 23 (14.4) | 74 (46.2) | 63 (39.4) | |
| Age yrs | ||||
| T1 | 52.8±13.7 | 50.9±10.5 | 49.5±11.5 | 0.478 |
| T2 | 55.7±13.5 | 56±10.8 | 55.6±11.6 | 0.978 |
| BMI kg·m−2 | ||||
| T1 | 29.8±4.1 | 29.4±5.8 | 29±3.4 | 0.782 |
| T2 | 28.3±3.5 | 30±5.4 | 30.8±4.8 | 0.107 |
| AHI events·h−1 | ||||
| T1 | 40.9±19 | 22.4±26.4 | 16.2±14.4 | <0.001 |
| T2 | 13.2±8.9 | 23.2±24.7 | 41.4±21.6 | <0.001 |
Data are presented as n (%) or mean±sd. Improved, unchanged or worsened AHI was defined as a ≥25% change of initial AHI 5.