Overall Survival and Risk Factors for Mortality Analysis
Median follow-up was 17.2 months (IQR 4.2 – 39.1). Overall survival based on Kaplan-Meier estimates was 83.6, 76.2, and 68.2% at 1, 3, and 5 years, respectively (Figure 1A and Appendix Table 2) . Survival for those undergoing hemiarch repair was 89.0, 81.2, and 73.5% at 1, 3, and 5 years while survival for those undergoing total arch repair was 76.4, 69.5, and 61.7% at 1, 3, and 5 years (log rank p=0.010, Figure 1B and Appendix Table 2 ).