Table 1.
Patient and culprit versus non-culprit carotid characteristics.
| Patient characteristics (n = 41) | |||
|---|---|---|---|
| Age (years)—mean (SD) | 74.1 (8.4) | ||
| Male—n (%) | 32 (78.0%) | ||
| Presence of cardiovascular risk factors | |||
| Diabetes mellitus—n (%) | 8 (19.5%) | ||
| Hypertension—n (%) | 27 (65.9%) | ||
| Smoking history (current or former)—n (%) | 29 (70.7%) | ||
| Cerebrovascular event | |||
| Stroke—n (%) | 30 (73.2%) | ||
| TIA—n (%) | 11 (26.8%) | ||
| Carotid characteristic | Culprit (n = 41) | Non-culprit (n = 41) | p value |
|---|---|---|---|
| Plaque type | |||
| Calcified—n (%) | 9 (22.0%) | 15 (36.6%) | 0.070 |
| Noncalcified—n (%) | 2 (4.9%) | 5 (12.2%) | 0.250 |
| Mixed—n (%) | 30 (73.2%) | 21 (51.2%) | 0.012* |
| Calcium burden (AU) | |||
| Median (IQR) | 263 (95–701) | 387 (63–659) | 0.706 |
| Minimum | 0 | 0 | - |
| Maximum | 1963 | 1671 | - |
| Carotid stenosis (%) | |||
| Mean (SD) | 72 (17) | 40 (22) | 4.70 × 10–9*** |
| Minimum | 29 | 3 | - |
| Maximum | 99 | 88 | - |
Plaque type comparisons: McNemar’s test on paired proportions; Calcium score comparison: Wilcoxon signed-rank test; Carotid stenosis comparison: paired Student t-test. n, number of carotids or number of patients respectively; AU, Agatston units; IQR, interquartile range, SD, standard deviation; TIA, transient ischaemic attack; * p value < 0.05, *** p value < 0.001.