Subject characteristics according to randomisation
| No treatment | CPAP treatment | |||
| Patients n | 120 | 143 | ||
| Excluded | Followed | Excluded | Followed | |
| Patients n | 31 | 89 | 61 | 82 |
| Age yrs | 49.7±9.6 | 52.1±8.8 | 48.1±9.6 | 53.8±9.7 |
| Females % | 29.0 | 15.7 | 29.5 | 19.5 |
| BMI kg·m−2 | 29.4±5.2 | 29.7±4.9 | 29.1±6.4 | 30.5±6.9 |
| AHI<30 | 20.2±7.5# | 24.0±5¶ | ||
| AHI≥30 | 64.4±26.2+ | 75.9±34.9§ | ||
| ESS | 10.3±4.4 | 10.3±5.1 | 10.2±4.8 | 9.8±4.6 |
| TTB/TTA | 2.5±0.8 | 2.48±0.89 | 2.7±2.1 | 2.50±0.95 |
| Percentage of positive responses to NHP items | 20.1±12.5 | 19±14 | 21.7±17.3 | 23±18 |
| NHP scores by dimension | ||||
| Physical mobility | 12.1±14.7 | 12.3±14.6 | 14.4±21.8 | 17.4±17.9 |
| Social isolation | 10.5±16.1 | 9.6±17.6 | 12.6±20.0 | 11.4±20.0 |
| Pain | 12.7±20.3 | 12.5±18.8 | 18.6±27.5 | 23.7±29.2 |
| Emotional reactions | 22.2±16.1 | 20.1±20.7 | 24.7±24.3 | 21.7±23.5 |
| Energy | 45.4±38.2 | 40.3±36.7 | 47.9±38.2 | 47.7±36.5 |
| Sleep | 31.0±28.8 | 22.9±24.6 | 31.1±31.3 | 25.9±26.4 |
Data are presented as mean±sd unless otherwise stated
CPAP: continuous positive airway pressure
BMI: body mass index
AHI: apnoea/hypopnoea index
ESS: Epworth Sleepiness Scale
TTB/TTA: ratio of trail making test B to trail making test A
NHP: Nottingham Health Profile
#: n=31
¶: n=32
+: n=58
§: n=50