Actigraphy analysed sleep parameters for the first week following initiation of NIV compared with the first week following the 3-month assessment in the AVAPS (n=14) and fixed-level PS (n=15) arms
| Baseline | p Value | Follow-up | p Value | |||
| AVAPS | Fixed-level PS | AVAPS | Fixed-level PS | |||
| TST (min) | 341±80 | 352±78 | 0.713 | 321±52 | 346±75 | 0.302 |
| WASO%TST (%) | 23±11 | 23±17 | 0.987 | 27±16 | 20±13 | 0.185 |
| Latency (min) | 5±3 | 8±7 | 0.164 | 4±2 | 5±6 | 0.577 |
| Efficiency (%) | 80±7 | 80±13 | 0.894 | 79±9 | 81±9 | 0.416 |
The p value refers to comparison between interventions at each time point by independent t test.
AVAPS, average-volume-assured pressure support; PS, pressure support; TST, total sleep time; WASO%TST, wake after sleep onset as a % of TST.