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Effect of unilateral and bilateral moyamoya disease on aneurysm site.
| Aneurysm | |||
|---|---|---|---|
| Variables | Anterior circulation | Posterior circulation | Total |
| Side | |||
| Unilateral | |||
| Count | 38 | 6 | 44 |
| Percentage (%) | 86.4 | 13.6 | 100.0 |
| Bilateral | |||
| Count | 19 | 11 | 30 |
| Percentage (%) | 63.3 | 36.7 | 100.0 |
| Total | |||
| Count | 57 | 17 | 74 |
| Percentage (%) | 77.0 | 23.0 | 100.0 |
χ2=5.347, P<0.05.
