Valve-Sparing Aortic Root Replacement Technique: Valsalva Graft versus Two Straight Tubular Grafts

Table 4

Cox proportional hazards regression for the risk factors of long-term mortality.

Variable	Hazard ratio (95% CI)	value
VSARR technique (two-graft vs. valsalva)	0.65 (0.08, 5.29)	0.69
Age	0.98 (0.94, 1.02)	0.37
Gender (male vs. female)	2.59 (0.33, 20.38)	0.37
Bicuspid aortic valve	1.88 (1.17, 3.02)	0.01
Prior cerebrovascular accident	9.04 (1.67, 48.83)	0.01
Prior cardiac surgery	3.43 (1.13, 10.37)	0.03
Primary indication (dissection vs. aneurysm)	1.63 (0.48, 5.57)	0.44

Abbreviations: VSARR, valve-sparing aortic root replacement.