Table 3.
Comparison of the clinical and laboratory characteristics between both groups at 1 and 4 h
| Parameters | Group1 successful NIV (n=40) | Group 2 failed NIV (n=18) | P-value |
|---|---|---|---|
| After 1 hour | |||
| Respiratory rate | 23.5 ± 6.2 | 35.5 ± 3.0 | p < 0.05 |
| Heart rate | 109.3 ± 6.9 | 117 ± 7.9 | NS |
| pH | 7.32 ± 0.06 | 7.22 ± 0.07 | p < 0.05 |
| PaO2 kPa | 7.5 ± 0.9 | 7.4 ± 0.5 | NS |
| PaCO2 kPa | 8.0 ± 0.8 | 11.5 ± 1.2 | p < 0.05 |
| Parameters | Group1 successful NIV (n=40) | Group 2 failed NIV (n=18) | p-value |
| After 4 hours | |||
| Respiratory rate | 24.1 ± 3.2 | 34.8 ± 3.5 | p < 0.05 |
| Heart rate | 95.9 ± 6.1 | 118 ± 5.4 | p < 0.05 |
| pH | 7.33 ± 0.05 | 7.21 ± 0.04 | p < 0.05 |
| PaO2 kPa | 7.9 ± 0.5 | 7.8 ± 0.4 | NS |
| PaCO2 kPa | 7.2 ± 0.5 | 10.5 ± 1.6 | p < 0.05 |