Table 1 Clinical characteristics of each patient group in this study
| Â | Â | No. of patients (%) | Â | |
|---|---|---|---|---|
| Â | Â | MMD | Controls | P value |
| Â | Variables | n = 20 | n = 12 | Â |
Age | Mean ± SD, years | 20.5 ± 17.4 | 61.2 ± 9.1 | <0.01 |
Sex, n (%) | Â | Â | Â | Â |
| Â | Male | 11 (55.0) | 3 (25.0) | 0.1 |
| Â | Female | 9 (45.0) | 9 (75.0) | Â |
Type of onset, n (%) | Â | Â | Â | NA |
| Â | TIA | 12 (60.0) | Â | Â |
| Â | Infarction | 4 (20.0) | 2 (16.7) | Â |
| Â | Hemorrhage | 1 (5.0) | Â | Â |
| Â | Asymptomatic | 2 (10.0) | 7 (58.3) | Â |
| Â | Others | 1 (5.0) | 3 (25.0) | Â |
Associated disease, n (%) | Â | Â | Â | NA |
| Â | None | 18 (90.0) | Â | Â |
| Â | Down syndrome | 2 (10.0) | Â | Â |
| Â | Cerebral aneurysm | Â | 9 (75.0) | Â |
| Â | Others | Â | 3 (25.0) | Â |
Suzuki's angiographycal stage (1-6) | Mean ± SD | 3.05 ± 0.9 |  | NA |