Ultrasound measurements of intima media thickness (IMT) and aortic wall thickness (AWT). Data are mean (SD)* or n (%)†
| Characteristic | Value | ICA stenosis | p value‡ | |
|---|---|---|---|---|
| <50% (n = 230) | ⩾50% (n = 71) | |||
| ‡P values are from corresponding tests of characteristics for the two patient groups: ICA stenosis <50% v ⩾50%. For both IMT and AWT we used 3×2 tables: three categories of each for the two ICA stenosis groups (<50% v ⩾50%). | ||||
| ICA, internal carotid artery. | ||||
| Mean IMT (mm)* | 1.02 (0.21) | 0.99 (0.20) | 1.09 (0.22) | 0.0004 |
| IMT >0.75–0.9 mm† | 95 (31.6) | 84 (36.5) | 11 (15.5) | 0.0007 |
| IMT >0.9–1.05 mm† | 101 (33.6) | 77 (33.5) | 24 (33.8) | |
| IMT >1.05–1.2 mm† | 105 (34.9) | 69 (30.0) | 36 (50.7) | |
| Mean AWT (mm)* | 2.95 (1.69) | 2.68 (1.56) | 3.82 (1.80) | <0.0001 |
| AWT <1.0 mm† | 19 (6.3) | 19 (8.3) | 0 (0.0) | <0.0001 |
| AWT 1.0–3.9 mm† | 217 (72.1) | 177 (77.0) | 40 (56.3) | |
| AWT⩾4.0 mm† | 65 (21.6) | 34 (14.8) | 31 (43.7) | |
| Mobile thrombus† | 17 (5.6) | 9 (3.9) | 8 (11.3) | 0.034 |