Clinical characteristics of all patients
| Group | ICA | Stem | Branch | Normal | P |
|---|---|---|---|---|---|
| Number of patients | 10 | 14 | 11 | 8 | |
| Age, median (range) (yr) | 71 (48–78) | 68 (56–82) | 74 (57–86) | 64 (55–84) | 0.671 |
| Sex, male | 10 (100%) | 12 (86%) | 9 (82%) | 7 (88%) | 0.598† |
| Hypertension | 8 (80%) | 9 (64%) | 5 (45%) | 8 (100%) | 0.065 |
| Diabetes mellitus | 2 (20%) | 5 (36%) | 4 (36%) | 1 (13%) | 0.405 |
| Hyperlipidemia | 5 (50%) | 4 (29%) | 4 (36%) | 6 (75%) | 0.181 |
| Smoking | 6 (60%) | 8 (57%) | 2 (18%) | 3 (38%) | 0.163 |
| Atrial fibrillation | 5 (50%) | 10 (71%) | 9 (82%) | 1 (13%) | 0.014 |
| Potential emboligenic diseases | 2 (20%) | 3 (21%) | 3 (27%) | 4 (50%) | 0.467 |
| Patent foramen ovale | 0 | 2 | 2 | 2 | |
| Left ventricular aneurysm | 0 | 1 | 0 | 0 | |
| Complicated lesion in aorta | 2 | 0 | 1 | 2 | |
| History of stroke/transient ischemic attack | 1 (10%) | 1 (7%) | 2 (18%) | 1 (13%) | 0.858 |
| Interval from stroke onset to angiography mean ± SD (min) | 173 ± 75 (150) | 211 ± 86 (194) | 223 ± 67 (185) | 223 ± 76 (199) | 0.272† |
| Affected side (right/left) | 6/4 | 8/6 | 3/8 | 3/5 | 0.353 |
* Analyzed by using the χ2 test.
† Analyzed by using the Kruskal-Wallis U test.