Predictors of mortality and reinterventions after BAV and SAV procedures
| HR | 95% CI | P value | |
| Mortality | |||
| Reintervention AVR | 2.8 | 1.1 to 6.9 | 0.02 |
| Age at current procedure (years) | 0.17/year | 0.03 to 0.86 | 0.03 |
| Neonate at initial procedure | 3 | 1.5 to 6.2 | 0.003 |
| Weight-for-age Z score at current procedure | 0.78/unit | 0.67 to 0.91 | 0.02 |
| SAS | 0.1 | 0.02 to 1 | 0.05 |
| VSD | 3.6 | 1.7 to 7.8 | 0.001 |
| AVR | |||
| Reintervention BAV* | 1.9 | 1 to 3.4 | 0.04 |
| Reintervention SAV* | 2.6 | 1.4 to 5.1 | 0.004 |
| Reintervention AVR* | 0.3 | 0.1 to 0.9 | 0.04 |
| Neonate at initial procedure | 2.1 | 1.3 to 3.5 | 0.002 |
| Weight-for-age Z score at current procedure | 0.84/unit | 0.74 to 0.96 | 0.01 |
| SAS | 2.3 | 1.3 to 4.3 | 0.005 |
| Female gender | 0.6 | 0.3 to 1 | 0.05 |
| BAV | |||
| Reintervention SAV* | 0.2 | 0.05 to 0.9 | 0.04 |
| Reintervention AVR* | 0.05 | 0.007 to 0.4 | 0.004 |
| Neonate at initial procedure | 2.4 | 1.5 to 3.6 | <0.001 |
| SAS | 2.8 | 1.6 to 4.9 | <0.001 |
| SAV | |||
| Reintervention AVR* | 0.1 | 0.01 to 0.8 | 0.03 |
| Neonate at initial procedure | 2.4 | 1.4 to 4.2 | 0.002 |
| MV defect | 3.1 | 1.7 to 5.9 | <0.001 |
*Reference is initial BAV.
AVR, aortic valve replacement; BAV, balloon aortic valvoplasty; MV, mitral valve; SAS, subaortic stenosis; SAV, surgical aortic valvotomy; VSD, ventricular septal defect.