Table 3.
Features associated with smaller and larger retinal arteriole calibre.
| Clinical and plaque characteristics | CRAE ≤ 154 µm | CRAE > 154 µm | p value |
|---|---|---|---|
| Patient characteristics (n = 28) | n = 14 | n = 14 | |
| Age (mean ± SD, years) | 62.7 ± 8.5 | 62.4 ± 10.7 | 0.94 |
| Males | 10 (71%) | 12 (86%) | 0.65 |
| Current and former smokers | 10 (71%) | 11 (79%) | 1.00 |
| Cigarette pack years (mean ± SD) | 27.3 ± 14.3 | 28.3 ± 30.1 | 0.92 |
| Diabetes | 4 (29%) | 6 (43%) | 0.69 |
| Hypertension diagnosis | 14 (100%) | 10 (71%) | 0.10 |
| Systolic BP (mean ± SD, mmHg) | 126.4 ± 12.6 | 120.2 ± 9.1 | 0.16 |
| Diastolic BP (mean ± SD, mmHg) | 73.4 ± 7.9 | 74.0 ± 5.4 | 0.80 |
| Mean arterial BP (mean ± SD, mmHg) | 91.0 ± 6.3 | 89.4 ± 5.1 | 0.47 |
| eGFR (mean ± SD, mL/min/1.73 m2) | 72.2 ± 15.6 | 76.6 ± 15.0 | 0.46 |
| Plaque characteristics (n = 161) | n = 72 | n = 89 | |
| Plaque type | |||
| Lipid (n = 54) | 36 (50%) | 18 (20%) | <0.0001 |
| Calcific (n = 75) | 22 (30%) | 53 (60%) | <0.001 |
| Fibrous (n = 32) | 14 (19%) | 18 (20%) | 1.00 |
| Plaque length (mm) | 3.2 ± 2.7 | 2.9 ± 2.7 | 0.35 |
| Plaque thickness (mean ± SD, mm) | 0.37 ± 0.17 | 0.50 ± 0.65 | 0.33 |
| Plaque cap thickness (mm, lipid plaques only) (n = 54) | 0.20 ± 0.09 (n = 36) | 0.18 ± 0.08 (n = 18) | 0.39 |
| Arc (°) | 109 ± 74 | 103 ± 68 | 0.54 |