Degree of carotid stenosis at baselinea
| Degree of stenosis | Ipsilateral ICA | Contralateral ICA |
|---|---|---|
| 0%–30% | – | 20 (54.1) |
| 30%–49% | 10 (27.0) | 4 (10.8) |
| 50%–59% | 4 (10.8) | 1 (2.7) |
| 60%–69% | 19 (51.4) | 3 (8.1) |
| 70%–79% | 1 (2.7) | – |
| 80%–95% | 1 (2.7) | 4 (10.8) |
| 95%–99% | 2 (5.4) | – |
| 100% | – | 5 (13.5) |
Note:— – indicates none.
↵a Values are counts (percentages). “Ipsilateral” and “Contralateral” are used to describe the carotid artery in relation to presenting symptoms.