TABLE 1.
Baseline Characteristics for UK Patients (n = 1644)
| Endovascular coiling (n = 809) | Neurosurgery clipping (n = 835) | |
|---|---|---|
| Age (years)* | 51 (44-60, 18-87) | 52 (44-60, 20-84) |
| Sex | ||
| Female | 517 (64%) | 530 (64%) |
| Male | 292 (36%) | 305 (37%) |
| WFNS grade | ||
| 1 | 546 (67%) | 546 (65%) |
| 2 | 185 (23%) | 212 (25%) |
| 3 | 50 (6%) | 55 (7%) |
| 4 | 18 (2%) | 16 (2%) |
| 5 | 5 (1%) | 0 (0%) |
| 6 (not assessable) | 5 (1%) | 6 (1%) |
| Maximum target aneurysm lumen size (mm) | ||
| ≤5 | 431 (53%) | 451 (54%) |
| 6-10 | 322 (40%) | 328 (39%) |
| ≥11 | 56 (7%) | 56 (7%) |
| Number of aneurysms detected | ||
| 1 | 615 (76%) | 650 (77%) |
| 2 | 145 (18%) | 139 (17%) |
| 3 | 32 (4%) | 32 (4%) |
| ≥4 | 17 (2%) | 14 (2%) |
| Time between SAH and randomization (days)* | 2 (1-5, 0-26) | 3 (1-6, 0-28) |
WFNS = World Federation of Neurological Surgeons.
*Median (lower quartile - upper quartile, range).