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Comparison of the patients between different risk levels in the external validation sets
| Risk level | Score | Cohort I | Cohort II | ||||
|---|---|---|---|---|---|---|---|
| Patients (%) | Predicted risk (%) | Observed risk (%) | Patients (%) | Predicted risk (%) | Observed risk (%) | ||
| Negligible | 0-110 | 246 (30.2) | 3.1 | 10.6 | 818 (51.1) | 3.0 | 3.2 |
| Low | 111–220 | 478 (58.7) | 10 | 6.3 | 558 (34.8) | 12 | 13.6 |
| Medium | 221–330 | 61 (7.5) | 34 | 34.4 | 181 (11.3) | 34 | 35.4 |
| High | 331–450 | 30 (3.7) | 72 | 67.8 | 45 (2.8) | 62 | 55.6 |
