Table 1:
Baseline patient characteristics
| Characteristic | Category |
|||
|---|---|---|---|---|
| Asymptomatic | Coexistent | Remote | Controls | |
| No. of patients | 51 | 19 | 19 | 7 |
| MP (No.) | 1 | 1 | 3 | – |
| Increased OEF | 7 | 4 | 6 | – |
| Decreased CBF/CBV | 1 | 3 | 5 | – |
| Age (mean) (yr) | 63 ± 9 | 63 ± 9 | 65 ± 8 | 47 ± 7 |
| Men/women (No.) | 31:20 | 13:6 | 13:6 | 4:3 |
| Cerebral infarction (No.). | 20 | 7 | 17 | – |
| Asymptomatic bilateral lacunar infarcts (No.) | 8 | 3 | 3 | – |
| Qualifying artery (No. of occlusions/stenoses) | 9/42 | 5/14 | 7/12 | – |
| Intracranial ICA (occlusions/stenoses) | 26 (3/23) | 9 (1/8) | 4 (1/3) | – |
| MCA (occlusion/stenosis) | 25 (6/19) | 10 (4/6) | 15 (6/9) | – |
| Other asymptomatic stenoses >50% (No.) | 18 | – | 2 | – |
| Other medical illness (No.) | ||||
| Hypertension | 27 | 11 | 15 | 0 |
| Diabetes mellitus | 14 | 10 | 5 | 0 |
| Ischemic heart disease | 9 | 7 | 4 | 0 |
| Hypercholesterolemia | 10 | 5 | 8 | 0 |
| Smoking habit (current and former) (No.) | 11 | 4 | 5 | 0 |
| Antiplatelet agents | 33 | 18 | 17 | 0 |
| Bypass surgery (MP) (No.) | 2 (1) | 0 | 2 (1) | – |
Note:—Asymptomatic indicates asymptomatic artery disease; Coexistent, coexistent asymptomatic artery disease; Remote, remote symptomatic artery disease.