Linearised (%/patient-year) rate of composite valve-related morbidity by age, and actuarial freedom from valve related morbidity at 15 years33
| Age (years) | Valve related morbidity | Actuarial freedom from valve related morbidity at 15 years | ||||
|---|---|---|---|---|---|---|
| Bioprosthesis (B) | Mechanical (M) | B vs M p values | Bioprosthesis (B) | Mechanical (M) | B vs M p values | |
| ≤40 | 0.0 | 0.8 | 0.011 | |||
| 41–50 | 0.0 | 1.3 | <0.001 | |||
| 51–60 | 0.3 | 2.2 | <0.001 | 97.6%±1.1% | 85.4%±2.5% | <0.001 |
| 61–70 | 0.4 | 2.7 | <0.001 | 95.6%±1.1 | 81.5%±3.7 | <0.001 |