Primary endpoints according to the HCM Risk-SCD calculator
| Estimated HCM Risk-SCD category | |||
| Low (<4%) | Intermediate (4%–6%) | High (≥6%) | |
| Patient, n (%) | 615 (84.2) | 65 (8.9) | 50 (6.8) |
| Primary endpoint, n (%) | 7 (43.8) | 3 (18.8) | 6 (37.5) |
| SCD | 7 (63.6) | 2 (18.2) | 2 (18.2) |
| Appropriate ICD therapy | 0 (0.0) | 1 (20.0) | 4 (80.0) |
| 5 years event rate (95% CI)* | 0.84 (0.31 to 1.82) | 3.73 (0.77 to 10.9) | 10.3 (3.76 to 22.3) |
*Event rate presented as per 100 person-years.
HCM, hypertrophic cardiomyopathy; ICD, Implantable cardioverter-defibrillator; SCD, sudden cardiac death.