Pattern of subarachnoid hemorrhage and the presence of intraventricular hemorrhage
| All | Men | Women | |
|---|---|---|---|
| Pattern of SAH | |||
| None | 29 (13%) | 15 (14%) | 14 (12%) |
| Perimesencephalic | 71 (31%) | 38 (34%) | 33 (28%) |
| Sulcal | 37 (16%) | 15 (14%)a | 22 (18%) |
| Diffuse | 93 (40%) | 43 (39%) | 50 (42%) |
| Xanthochromia on lumbar puncture | 16 (7%) | 8 (7%) | 8 (7%) |
| Isolated intraventricular hemorrhage | 13 (6%) | 7 (6%) | 6 (5%) |
↵a P = .0001 by Fisher exact test.