In-hospital course and endotracheal intubation during first 24 h
| NIV group | Control group | p Value | |
| Intensive care treatment, n | |||
| Yes | 14 | 12 | |
| No | 4 | 6 | 0.36 |
| Length of intensive care, h | 59 (23–132) | 185 (75–350) | 0.02 |
| Endotracheal intubation, n | |||
| Yes | 3 (1 prehospital) | 7 | |
| No | 15 | 11 | 0.13 |
| Mechanical ventilation of intubated patients, h | 6 (5–78) | 229 (40–392) | 0.07 |
| Length of hospital stay, days | 8 (3–14) | 13 (7–20) | 0.16 |
Data are presented as median (interquartile range); n, number of patients; NIV, non-invasive ventilation.