Risk index scores (quintiles) and mortality risks for patients with ST elevation myocardial infarction (derivation data set)
| Mortality risk | |||
|---|---|---|---|
| Risk index scores† | 24 hours | In hospital | 30 days |
| †(Heart rate × [age/10]2)/systolic blood pressure. | |||
| ≤12.5 | 0.2% | 0.6% | 0.8% |
| >12.5 to 17.5 | 0.4% | 1.5% | 1.9% |
| >17.5 to 22.5 | 1.0% | 3.1% | 3.3% |
| >22.5 to 30 | 2.4% | 6.5% | 7.3% |
| >30 | 6.9% | 15.8% | 17.4% |