Table 2.
Comparison of event rates between different evaluation groups within the development and validation sets
| Data set | Evaluation groupsa | Evaluations (%) | Patients | HF hospitalizations (% of evaluations) | Hazard ratio (95% CI) | P-value |
|---|---|---|---|---|---|---|
| Development (n = 921) | Low | 4525 (46) | 802 | 15 (0.3) | Reference | |
| Medium | 4018 (41) | 833 | 47 (1.2) | 3.7 (2.0, 6.7) | <0.001 | |
| High | 1247 (13) | 405 | 29 (2.3) | 6.2 (3.1, 12.3) | <0.001 | |
| Validation (n = 1310) | Low | 4838 (45) | 1085 | 28 (0.6) | Reference | |
| Medium | 4717 (44) | 1142 | 60 (1.3) | 2.1 (1.3, 3.4) | 0.001 | |
| High | 1100 (10) | 446 | 75 (6.8) | 10.0 (6.4, 15.7) | <0.001 |
aThe high group consisted of risk scores >20% and the low group consisted of risk scores ≤5%.