Risk stratification improvement with the addition of the ECG risk score to the baseline clinical risk model
| Baseline model | Baseline model+ECG risk score | |||
| <5% | 5%–20% | >20% | Total | |
| <5% | ||||
| No. of subjects (% of all subjects) | 5853 (85.7) | 141 (2.1) | 4 (0.1) | 5998 (87.8) |
| No. of subjects with SCDs (% of all subjects with SCDs) | 44 (36) | 11 (8.9) | 1 (0.8) | 56 (45.6) |
| No. of subjects without SCD (% of all subjects without SCDs) | 5809 (86.6) | 130 (1.9) | 3 (0.0) | 5942 (88.6) |
| 5%–20% | ||||
| No. of subjects (% of all subjects) | 244 (3.6) | 409 (6.0) | 73 (1.1) | 726 (10.6) |
| No. of subjects with SCDs (% of all subjects with SCDs) | 8 (6.5) | 36 (29.3) | 14 (11.4) | 58 (47.2) |
| No. of subjects without SCD (% of all subjects without SCDs) | 236 (3.5) | 373 (5.6) | 59 (0.9) | 668 (10.0) |
| >20% | ||||
| No. of subjects (% of all subjects) | 0 (0) | 36 (0.5) | 70 (1.0) | 106 (1.6) |
| No. of subjects with SCDs (% of all subjects with SCDs) | 0 (0) | 4 (3.3) | 5 (4.1) | 9 (7.3) |
| No. of subjects without SCD (% of all subjects without SCDs) | 0 (0) | 32 (0.5) | 65 (1.0) | 97 (1.4) |
| Total | ||||
| No. of subjects (% of all subjects) | 6097 (89.3) | 586 (8.6) | 147 (2.2) | |
| No. of subjects with SCDs (% of all subjects with SCDs) | 52 (42.3) | 51 (41.5) | 20 (16.3) | |
| No. of subjects without SCD (% of all subjects without SCDs) | 6045 (90.1) | 535 (8.0) | 127 (1.9) | |
SCD, sudden cardiac death.