- Comparison of groups regarding the method of oxygen supplement therapy (N=164).
| Oxygen supplement modality | Group A (n=45) | Group B (n=26) | Group C n=93) | P-values |
|---|---|---|---|---|
| Oxygen mask with reservoir | 20 (44.4) | 9 (34.6) | 45 (48.4) | 0.457 |
| High-flow nasal cannula | 4 (8.9) | 1 (3.8) | 19 (20.4) | 0.047* |
| NIPPV | 3 (6.7) | 2 (7.7) | 21 (22.6) | 0.026* |
| IPPV | 37 (82.2) | 24 (92.3) | 83 (89.2) | 0.371 |
↵* p<0.05, NIPPV: noninvasive positive pressure ventilation, IPPV: invasive positive pressure ventilation