Table 4.
Correlation between duration of mechanical ventilation (days) and various other variables.
| Variables | Pearson correlation | Duration of mechanical ventilation | Age (yrs.) | Duration of PICU stay (days) | Fluid balance (%) | PIM2 score |
|---|---|---|---|---|---|---|
| Duration of mechanical ventilation (days) | Pearson's r | 1.000 | -0.224 | 0.925∗∗ | 0.297 | 0.034 |
| P value | 0.165 | 0.01 | 0.063 | 0.833 | ||
| Age (yrs.) | Pearson's r | -0.224 | 1.000 | -0.175 | -0.302 | -0.031 |
| P value | 0.165 | 0.280 | 0.059 | 0.852 | ||
| Duration of PICU stay (days) | Pearson's r | 0.925∗∗ | -0.175 | 1.000 | 0.168 | 0.027 |
| P value | 0.01 | 0.280 | 0.299 | 0.869 | ||
| Fluid balance (%) | Pearson's r | 0.297 | -0.302 | 0.168 | 1.000 | 0.176 |
| P value | 0.063 | 0.059 | 0.299 | 0.278 | ||
| PIM2 score | Pearson's r | 0.034 | -0.031 | 0.027 | 0.176 | 1.000 |
| P value | 0.833 | 0.852 | 0.869 | 0.278 |
∗∗Correlation is significant at the 0.01 level (2-tailed).