Patient and aneurysm characteristics
| Variable | Group A (n = 52) | Group B (n = 33) |
|---|---|---|
| Mean (± SD) age (y) | 59.3 ± 12.4 | 58.1 ± 14.0 |
| Sex | ||
| Female | 35 | 22 |
| Male | 17 | 11 |
| Location of aneurysm | ||
| Internal carotid artery | 24 | 14 |
| Anterior cerebral artery | 15 | 12 |
| Middle cerebral artery | 5 | 1 |
| Vertebrobasilar system | 8 | 6 |
| Mean (± SD) aneurysm size (mm) | 5.0 ± 3.0 | 5.0 ± 2.8 |
| Mean (± SD) no. of coils | 5.3 ± 4.5 | 4.8 ± 2.4 |
Note.—Differences between the groups for all variables were not significant (P > .05).