Table I.
Patient demographics
| CEA (n = 7649) | CAS (n = 430) | P value | |
|---|---|---|---|
| Age | 70 | 69 | .13 |
| Male | 60% | 66% | .019 |
| Elective | 89% | 90% | .51 |
| Any symptoms | 34% | 36% | .33 |
| TIA/amaurosis | 24% | 25% | .53 |
| Minor stroke | 8% | 8% | .80 |
| Major stroke | 2% | 3% | .35 |
| Hypertension | 88% | 88% | .73 |
| Any smoking history | 80% | 85% | .014 |
| Coronary artery disease | 33% | 45% | .001 |
| Positive stress test | 11% | 13% | .16 |
| CHF | 8% | 17% | .001 |
| Diabetes | 31% | 34% | .20 |
| COPD | 23% | 30% | .002 |
| Renal insufficiency | 6% | 8% | .070 |
| Prior ipsilateral CEA | 2% | 33% | .001 |
| Antiplatelet therapy | 90% | 97% | .001 |
| Current β-blocker therapy | 81% | 72% | .001 |
| Current statin therapy | 76% | 78% | .22 |
| White race | 99% | 99% | .53 |
CEA, Carotid endarterectomy; CHF, congestive heart failure; COPD, chronic obstructive pulmonary disease; TIA, transient ischemic attack.