Table 5.

Incidence of in-hospital death, death at 2 years, stroke at 2 years and reintervention at 2 years, as well as in-hospital and longterm costs for asymptomatic patients undergoing carotid endarterectomy stratified by risk of death.

	Low Risk of Death at 2Y (riskscore <6)	Medium Risk of Death at 2Y (riskscore 6–12)	High Risk of Death at 2Y (riskscore >12)
MORTALITY
In-Hospital Death (n (%))	2 (0.1%)	4 (0.3%)	1 (2.6%
Death at 2 years (n (%))	75 (4%)	116 (10%)	17 (43.6%)
COST
Mean In-Hospital Cost (SD)	$7,500 (5,654)	$8,276 (6,583)	$10,868 (7,685)
Mean Cost at 2 years (SD)	$8,801 (7,550)	$10,025 (8,252)	$17,815 (36,113)
Low Cost, ≤$18,000 (n (% in risk strata))	1715 (90.5%)	1005 (86.3%)	29 (74.4%)
High Cost, >$18,000 (n (% in risk strata))	179 (9.5%)	159 (13.7%)	10 (24.6%)
STROKE AND RE-INTERVENTION at 2 YEARS
Rehospitalization for Stroke (n (%))	194 (10.2%)	168 (14.4%)	5 (12.8%)
Re-Intervention (n (%))	109 (5.8%)	82 (7.0%)	3 (7.7%)