Baseline characteristics of all randomised patients
| All patients, n=322 | AutoCPAP group, n=161 | FP-CPAP group, n=161 | p Value | |
|---|---|---|---|---|
| BMI | 30.0 (26.9/34.5) | 29.4 (26.6/34.3) | 30.8 (27.1/34.6) | 0.25 |
| Age, years | 58 (51/65) | 58 (49/64) | 58 (52/66) | 0.30 |
| Men, % | 70.2 | 70.80 | 69.60 | 0.81 |
| Current smoker or ex-smoker, % | 60.20 | 59.00 | 61.50 | 0.65 |
| Apnoea–hypopnoea index, event/h | 38.8 (28.4/56.0) | 37.7 (28.4/54.5) | 39.0 (28.4/56.9) | 0.43 |
| Mean nocturnal SaO2, % | 92.8±2.9 | 92.9±3.0 | 92.7±2.8 | 0.62 |
| Epworth Sleepiness Scale | 9 (6/14) | 9 (6/13) | 10 (6/14) | 0.10 |
| Hypertensive, % | 65.50 | 60.90 | 70.20 | 0.08 |
| Diabetic, % | 19.20 | 18.20 | 20.30 | 0.64 |
Continuous data are presented as median (25th/75th percentiles) when a Mann–Whitney U test was performed or as mean±SD when a t test was performed.
Qualitative data are presented as percentage and analysed with a χ2 test.
AutoCPAP, auto-adjusted CPAP; BMI, body mass index (calculated as weight in kilograms divided by height in metres squared); FP-CPAP, fixed-pressure CPAP.