Diagnostic | Manual | AutoSet | Fixed | |
---|---|---|---|---|
Apnoea + hypopnoea index (events/h) | 60.3 (5.7) | 10.1 (3.0) | 2.8 (0.9)m** | 2.5 (0.7)d*** |
Apnoea duration (s) | 34.7 (2.1) | 22.4 (1.5) | 16.1 (1.9)m* | 16.1 (2.2)d*** |
Mean nadir saturation (%) | 70.9 (2.2) | 84.8 (1.4) | 90.4 (0.8)m** | 90.0 (0.9)d*** |
Total sleep time (min) | 357 (4.6) | 366 (4.3) | 344 (5.8)m*** | 358 (4.3)a** |
Stage 1 sleep (%) | 28.6 (4.0) | 14.7 (1.9) | 13.8 (1.6) | 12.9 (1.5)d** |
Stage 2 sleep (%) | 46.9 (2.9) | 25.8 (2.4) | 26.0 (2.3) | 29.0 (2.4)d*** |
Slow wave sleep (%) | 8.1 (2.2) | 30.5 (4.2) | 29.8 (3.1) | 32.5 (2.9)d*** |
REM sleep (%) | 10.3 (1.6) | 22.9 (1.5) | 21.0 (1.3) | 20.4 (1.8)d*** |
Respiratory arousal index (events/h) | 49.6 (4.9) | 7.9 (2.4) | 1.5 (0.6)m** | 1.3 (0.4)d*** |
Non-respiratory arousal index (events/h) | 3.1 (0.6) | 6.3 (0.7) | 7.4 (0.8) | 8.2 (1.0)d*** |
Diagnostic = diagnostic study without CPAP; manual = manual titration night; AutoSet = AutoSet automatic titration night; fixed = conventional fixed pressure treatment at pressure recommended from AutoSet night
d*, d**, d***, significantly different from diagnostic (p<0.05, p<0.01, p<0.001, respectively); a*, a**, a***, significantly different from AutoSet (p<0.05, p<0.01, p<0.001, respectively); m*, m**, m***, significantly different from manual titration (p<0.05, p<0.01, p<0.001, respectively).