Table-II.
Clinical outcomes.
| Group | n | Improvement rate | Incidence of complications | Rate of changing into mechanical ventilation |
|---|---|---|---|---|
| Observation | 23 | 19 (82.6) | 9 (39.1) | 3 (14.3) |
| Control | 26 | 15 (57.7) | 18 (69.2) | 5 (19.2) |
| χ2 | 4.12 | 4.98 | 0.04 | |
| P | <0.05 | <0.05 | <0.05 |
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