. Author manuscript; available in PMC: 2023 Sep 1.

Published in final edited form as: J Vasc Surg. 2022 Mar 26;76(3):671–679.e2. doi: 10.1016/j.jvs.2022.02.036

Table III.

Cox Proportional Hazards Model for Predictors of Conversion to Open Repair

Predictors of Open Conversion	Hazard Ratio	95% CI	p-value
Aorto Uni-Iliac Endograft	2.19	1.56–3.07	<.001
Surgeon Experience ≥ 7 years in practice	1.96	1.24–3.12	<.001
AAA >6.0cm at Time of Index EVAR	1.74	1.35–2.23	<.001
Non-Elective (urgent/emergent) EVAR	1.72	1.28–2.3	<.001
Female sex	1.49	1.15–1.94	<.001
Use of Adjunct (Endoanchors, cuff)	0.62	0.38–1.02	0.06
Procedure in 2010–2016 vs. 2003–2009	0.49	0.33–0.71	<.001

Non-significant variables were: all remaining patient demographic and comorbidity characteristics, geographic region of index EVAR procedure, & annual surgeon EVAR volume.