Demographic and clinical data at admission
| Patients | Controls | |
|---|---|---|
| No. | 25 | 20 |
| Sex | 16 M/9 F | 13 M/7 F |
| Age (yr) (mean) (range) | 52 (28–71) | 50 (26–69) |
| Fisher grading (mean) | 3 | |
| Grade 1 (No.) | 5 | |
| Grade 2 (No.) | 2 | |
| Grade 3 (No.) | 6 | |
| Grade 4 (No.) | 12 | |
| GCS (mean) (range) | 14.1 (10–15) | |
| WFNS score (mean) (range) | 1.5 (1–4) | |
| No vascular lesion (No.) | 10 | |
| Brain aneurysm (No.) | 15 | |
| Etiologic work-up (CTA and DSA) | ||
| ACA (No.) | 6 | |
| MCA (No.) | (right 2, left 2) | |
| Right PcomA (No.) | 2 | |
| Left vertebral artery (No.) | 1 | |
| Left ICA (No.) | 1 | |
| Basilar artery (No.) | 1 |
Note:—GCS indicates Glasgow Coma Scale; WFNS, World Federation of Neurosurgical Societies; ACA, anterior communicating artery; PcomA, posterior communicating artery.