slightly significantP =0.04
Postoperative Mortality The 16 studies 3 evaluating postoperative mortality showed a slightly significant difference in rate of mortality between BAV and TAV patients (16.2% vs 18.8%; OR, 0.62; 95% CI: 0.40, 0.97; P =0.04; I 2 =65%; P <0.001; Figure 4 ).