Clip versus coiling, characteristics
| Clipped, n (%) | Coiled, n (%) | |
| Totals | 54 | 32 |
| Female | 44 (81) | 26 (81) |
| Mean age | 50.2 | 54.4 |
| Aneurysm size | ||
| <4.0 mm | 17 (32) | 8 (25) |
| 4.0–8.0 mm | 31 (57) | 18 (56) |
| >8.0 mm | 6 (11) | 6 (19) |
| Intraoperative rupture | 1/54 (1.8)* | 1/32 (3.1)† |
| Re-treatment | 0 | 2/32 (6.2) |
| Non-SAH | 19 | 7 |
| SAH | 35 | 25 |
| Hunt–Hess grade | ||
| I–II | 16 (46) | 13 (52) |
| III | 13 (37) | 8 (32) |
| IV–V | 6 (17) | 4 (16) |
| Modified Fisher score | ||
| 1–2 | 6 (17) | 5 (20) |
| 3 | 10 (29) | 10 (40) |
| 4 | 19 (54) | 10 (40) |