Observed and predicted events by risk group
| Risk groups (predicted risk range) | N | Average predicted risk, % | Observed prevalence, % | Expected frequency based on predicted risk | Number of observed events |
| Lower than average (≤1.2%) | 378 258 | 0.5 | 0.5 | 2018 | 1896 |
| Higher than average (>1.2%–2.5%) | 99 714 | 1.7 | 1.8 | 1690 | 1758 |
| At higher risk (>2.5%) | 49 486 | 5.4 | 5.5 | 2683 | 2737 |
| Total | 527 458 | 1.2 | 6391 | 6391 |