Table 2.
Multiple regression analysis assessing the relative effect of predictive variables for length of ventilation and length of stay in the PCCU.
| Prediction variables | Length of mechanical ventilation | Length of stay in the PCCU | ||
|---|---|---|---|---|
| B | Beta | B | Beta | |
| Age | −0.2∗ | −0.278 | −0.203∗ | −0.256 |
| PELD | 0.02 | 0.086 | — | — |
| Blood trasfused in OR | 0.166∗ | 0.293 | −0.054 | −0.061 |
| PRISM | 0.036∗ | 0.202 | 0.031 | 0.168 |
| Infection | 0.188 | 0.170 | — | — |
| PaO2/FiO2 first day | 0.000 | −0.085 | 0.000 | −0.036 |
| OI second day | — | — | 0.436∗∗ | 0.396 |
| Pleural effusion | 0.162 | 0.095 | — | — |
| Suspected rejection | −0.078 | −0.064 | — | — |
| Thrombosis | 0.533∗ | 0.221 | — | — |
| Creatinine postop | 0.014 | 0.008 | — | — |
OR, operation room; OI, oxygenation index, *P < 0.05; **P < 0.001.