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Baseline Characteristics.
| Intervention | n | Percentage |
|---|---|---|
| Clipping | 70 | 34.5% |
| Coiling | 133 | 65.5% |
| Sex | ||
| male | 77 | 37.9% |
| female | 126 | 62.1% |
| Mean | Standard deviation | |
| Age | 55.1 y (16–88 y) | 13.4 |
| Mean aneurysm size | 5.9 mm (2–22 mm) | 3.1 |
| WFNS Grade | n | Percentage |
| Grade I–II | 109 | 53.7% |
| Grade III | 19 | 9.4% |
| Grade IV–V | 75 | 36.9% |
| Location of aneurysm | n | Percentage |
| ACA/AcoA | 85 | 41.9% |
| ICA | 45 | 22.2% |
| MCA | 52 | 25.6% |
| VA/BA | 21 | 10.3% |
