Clinical characteristics and imaging findings of patients with different symptom stages
| All (n = 126) | Symptomatic (n = 66) | Asymptomatic (n = 60) | P Value | |
|---|---|---|---|---|
| Age (mean) (yr) | 61.5 ± 10.0 | 61.7 ± 10.5 | 61.4 ± 9.4 | .86 |
| Sex (male) (No.) (%) | 82 (65.1%) | 50 (75.8%) | 32 (53.3%) | <.001a |
| Diabetes (No.) (%) | 42 (33.3%) | 23 (34.8%) | 19 (31.7%) | .71 |
| Smoking (No.) (%) | 35 (27.8%) | 25 (37.9%) | 10 (16.7%) | <.001a |
| Hypertension (No.) (%) | 101 (80.2%) | 52 (78.8%) | 49 (81.7%) | .69 |
| Hyperlipidemia (No.) (%) | 65 (51.6%) | 38 (57.6%) | 27 (45.0%) | .16 |
| Coronary artery disease (No.) (%) | 5 (4.0%) | 3 (4.5%) | 2 (3.3%) | .73 |
| Preadmission aspirin use (No.) (%) | 31 (24.6%) | 21 (31.8%) | 10 (16.7%) | .06 |
| Preadmission statin use (No.) (%) | 17 (13.5%) | 10 (15.2%) | 7 (11.7%) | .57 |
| NIHSS score (median) (range) | 1 (0–11) | 2 (0–11) | 0 (0–4) | <.001a |
| Degree of stenosis (mean) (%) | 52.6 ± 15.8 | 52.4 ± 15.5 | 52.8 ± 16.1 | .88 |
| Enhancement percentage (mean) | 17.4 ± 28.4 | 25.5 ± 26.1 | 8.5 ± 28.5 | <.001a |
| Intraplaque hemorrhage (No.) (%) | 22 (17.5%) | 21 (31.8%) | 1 (1.7%) | <.001a |
| Minimum lumen area (mean) (mm2) | 3.2 ± 2.7 | 3.7 ± 2.8 | 2.7 ± 2.6 | .04a |
| Plaque burden (mean) (%) | 84.0 ± 9.1 | 83.6 ± 9.8 | 84.4 ± 8.2 | .62 |
↵a Statistically significant.