| Total | WFNS I-III | WFNS IV + V | p-value |
---|---|---|---|---|
Number | 100% (104/104) | 56.7% (59/104) | 43.3% (45/104) | Â |
Age (years) | 56.4 +/−  13.7 | 57.8 +/−  15.2 | 54.5 +/− 11.3 | 0.22 |
Female sex | 43.3% (45/104) | 47.5% (28/59) | 37.8% (17/45) | 0.43 |
Male sex | 56.7% (59/104) | 52.5% (31/59) | 61.2% (28/45) | 0.43 |
Anterior circulation aneurysma | 90.7% (97/107) | 93.5% (58/62) | 86.7% (39/45) | 0.43 |
Posterior circulation aneurysma | 9.3% (10/107) | 6.5% (4/62) | 13.3% (6/45) | 0.43 |
Mean aneurysm size (mm) | 6.7 +/− 3.8 | 5.8 +/−  3.1 | 8.0 +/− 4.4 | 0.009 |