Using Risk Models to Improve Patient Selection for High-Risk Vascular Surgery

Table 4

Multivariate analysis of factors associated with thirty-day stroke/death after CEA.

Variable	Odds ratio	95% CI	𝑃 value
Age over 70 years	1.3	0.8–2.3	0.315
Contralateral ICA occlusion	2.8	1.3–6.2	0.009
Antiplatelet agent use	0.4	0.2–0.9	0.02
Congestive heart failure	1.6	1.1–2.4	0.03
Emergent procedure; (within 6 hours of admission)	7.0	1.8–26.9	0.004
Preoperative ipsilateral cortical symptoms (stroke)	2.4	1.1–5.1	0.02

Area under ROC: 0.71; TIA: transient ischemia attack.