| Demographic Characteristics | Group I (early) (n = 15) | Group II (late) (n = 24) | p |
| Mean Age, yr (SD) | 68.27 ± 10.0 | 68.0 ± 10.70 | |
| Male | 9 | 19 | 0.196 |
| Hypertension | 8 | 12 | 0.55 |
| Diabetes | 5 | 5 | 0.384 |
| COPD | 4 | 4 | 0.686 |
| Hyperlipidemia | 2 | 2 | 0.681 |
| PAD | 0 | 3 | 0.274 |
| Cardiac | |||
| High risk | 0 | 2 | 0.452 |
| Moderate risk | 3 | 3 | n/a |
| Low risk | 12 | 19 | |
| Dialysis | 0 | 0 | |
| Arterial Closure | |||
| Patch | 13 | 18 | |
| Primer | 2 | 6 | 0.99 |
| Carotid lesion | |||
| Ipsilateral | 74.27 ± 16.46 | 83.63 ± 14.01 | 0.066 |
| Contralateral | 26.67 ± 19.48 | 29.96 ± 12.17 | 0.642 |