Rate of ECABG following PCI in each decile of the risk scores predicted by the computational risk stratification model
| Decile | 100–90 | 90–80 | 80–70 | 70–60 | 60–50 | 50–40 | 40–30 | 30–20 | 20–10 | 10–0 |
|---|---|---|---|---|---|---|---|---|---|---|
| Events | 45 | 12 | 10 | 4 | 4 | 4 | 3 | 2 | 1 | 2 |
| Patients | 4230 | 4231 | 4232 | 4231 | 4231 | 4231 | 4231 | 4232 | 4231 | 4230 |
| O(rate) | 1.06% | 0.28% | 0.24% | 0.09% | 0.09% | 0.09% | 0.07% | 0.05% | 0.02% | 0.05% |
| E(rate) | 1.48% | 0.40% | 0.28% | 0.22% | 0.18% | 0.16% | 0.13% | 0.11% | 0.09% | 0.06% |
O(rate) corresponds to the observed rate of events (events/patients in the decile) and E(rate) corresponds to the expected rate of events (sum of the risk predicted across all patients in the decile by the SVMAUROC model).
AUROC, area under the receiver operating characteristic curve; ECABG, emergency coronary artery bypass graft; PCI, percutaneous coronary intervention; SVM, support vector machine.