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Predicted and observed mortality rates using different risk scores in high-risk patients (modified from reference39)
| STS score | Additive EuroSCORE | Logistic EuroSCORE | Ambler score | |
|---|---|---|---|---|
| N | 64 | 84 | 64 | 97 |
| Predicted mortality (%) | 13.3 | 14.0 | 50.9 | 19.0 |
| Observed mortality (%) | 18.7 | 11.9 | 15.6 | 13.4 |
| Ratio of observed to predicted mortality | 1.41 | 0.85 | 0.31 | 0.71 |
| Observed late mortality (%) | 45.3 | 33.3 | 29.7 | 26.8 |
