Table 2.
Ultrasonographic Findings and Screening for Heart Attack Prevention and Education Categories in the Two Patient Groups
| Carotid bruit detected | No carotid bruit detected | Matched OR (95% CI) | P | |
|---|---|---|---|---|
| Carotid stenosis | ||||
| ≥50% | 15 (30.0) | 2 (4.0) | 14.0 (1.8–106.5) | 0.001 |
| ≥70% | 5 (10.0) | 1 (2.0) | 5.0 (0.6–42.8) | 0.22 |
| Hard or mixed plaque | 39 (78.0) | 26 (52.0) | 4.3 (1.4–12.6) | 0.007 |
| CIMT | ||||
| >1.0 mm | 26 (52.0) | 9 (18.0) | 5.3 (1.8–15.3) | 0.001 |
| ≥75th percentilea | 30 (66.7) | 20 (44.4) | 3.0 (1.1–8.3) | 0.041 |
| SHAPE category | ||||
| Lower/moderate | 1 (2.0) | 2 (4.0) | ||
| Moderately high | 1 (2.0) | 3 (6.0) | 0.018 | |
| High | 33 (66.0) | 43 (86.0) | ||
| Very high | 15 (30.0) | 2 (4.0) | ||
a
n=45 for case/control pairs, both of whom were within the <85 year age range used by the Screening for Heart Attack Prevention and Education (SHAPE) guidelines.
CI, confidence interval; CIMT, carotid intima-medial thickness; OR, odds ratio.