Table 1.

Cox Model for predicting death at 2 years following carotid endarterectomy in asymptomatic patients.

Variable	HR	95% CI	P-Value
Age
<70	Reference	-	-
70–79	1.5	1.2–1.9	<0.001
≥ 80	2.9	2.2–3.8	<0.001
Insulin Requiring Diabetes	1.7	1.3–2.2	<0.001
Past or Current Smoking	1.3	1.02–1.7	0.037
Congestive Heart Failure	2.2	1.7–2.8	<0.001
COPD*	1.8	1.5–2.3	<0.001
Renal Function (%)
eGFR†≥60	Reference	-	-
eGFR<60	1.5	1.2–1.9	<0.001
Dialysis Dependent	4.0	2.2–7.2	<0.001
Contralateral ICA‡ stenosis
<50%	Reference	-	-
≥50%	1.4	1.2–1.7	0.001
Occluded	2.2	1.5–3.1	<0.001
Lack of Statin	1.3	1.05–1.6	0.019

^*COPD, chronic obstructive pulmonary disease

^†eGFR, estimated glomerular filtration rate

^‡ICA, internal carotid artery