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Significance of the APACHE II ROC curve
| Area under the ROC curve (AUC) | 0.743 |
| Standard error | 0.0352 |
| 95% confidence interval | 0.706 to 0.778 |
| z statistic | 6.907 |
| P (Area=0.5) | <0.0001 |
| Significance of the EuroSCORE ROC Curve | |
| Area under the ROC curve (AUC) | 0.767 |
| Standard error a | 0.0239 |
| 95% confidence interval b | 0.731 to 0.800 |
| z-statistic | 11.181 |
| P (Area=0.5) | <0.0001 |
