Variable | Unadjusted | Adjusted for clustering | N | ||
---|---|---|---|---|---|
Correlation | p value | Correlation (robust SE) | p value** | ||
P/F ratio* |  − 0.37 |  < 0.001 |  − 0.37 (0.04) |  < 0.001 | 754 |
Blood pH level |  − 0.33 |  < 0.001 |  − 0.33 (0.04) |  < 0.001 | 756 |
PaCO2 level* | 0.24 |  < 0.001 | 0.24 (0.04) |  < 0.001 | 755 |
Tidal volume |  − 0.10 | 0.004 |  − 0.10 (0.04) | 0.02 | 805 |
PEEP* | 0.36 |  < 0.001 | 0.36 (0.04) |  < 0.001 | 826 |
Respiratory rate | 0.28 |  < 0.001 | 0.28 (0.04) |  < 0.001 | 821 |
Plateau pressure* | 0.35 |  < 0.001 | 0.34 (0.04) |  < 0.001 | 765 |
Peak airway pressure | 0.29 |  < 0.001 | 0.29 (0.04) |  < 0.001 | 810 |
Mean airway pressure* | 0.38 |  < 0.001 | 0.38 (0.04) |  < 0.001 | 766 |
Driving pressure | 0.18 |  < 0.001 | 0.18 (0.05) |  < 0.001 | 764 |
Mechanical power* | 0.25 |  < 0.001 | 0.25 (0.04) |  < 0.001 | 749 |
Mechanical power indexed to compliance | 0.31 |  < 0.001 | 0.1 (0.04) |  < 0.001 | 749 |