Table 3.
Univariate analysis of variables per carotid artery
| Variables | Incidence of events from carotid artery
atherosclerosis |
P value | ||
| + (n = 6)
mean (range) |
− (n = 216)
mean (range) |
|||
| Entire Carotid | ||||
| Max dose (Gy) | 59.1 (52.9–70.0) | 58.8 (1.5–76.0) | 0.94 | |
| Mean dose (Gy) | 18.5 (4.6–49.0) | 14.8 (1.0–66.9) | 0.51 | |
| V35 (%) | 28.1 (2.7–78) | 22.2 (0–78) | 0.81 | |
| V45 (%) | 19.7 (1–74) | 13.0 (1–77) | 0.77 | |
| V55 (%) | 13.5 (0.5–65) | 5.6 (0–75) | 0.84 | |
| V65 (%) | 0 (0–48) | 0 (0–74) | 0.80 | |
| Carotid bulb | ||||
| Mean dose (Gy) | 31.7 (0.6–65) | 5.75 (1–70) | 0.48 | |
| Calcification | No | 1 | 159 | <0.01 |
| Yes | 5 | 57 | ||