Univariate analysis of risk factors for retreatment of coiled basilar tip aneurysms in 144 patients
| No Recurrence (n = 107) | Recurrence (n = 37) | OR (95% CI) | P Value | |
|---|---|---|---|---|
| Median age at first treatment (yr) | 54 | 46 | 0.97 (0.9–1.0) | .13 |
| Male sex | 25 (23%) | 16 (43%) | 2.6 (1.2–5.6) | .02 |
| Median aneurysm size (mm) | 9 | 15 | 1.1 (1.1–1.2) | <.001 |
| Size of aneurysm in quintilesa | ||||
| Quintile 2 versus 1 | 0.9 (0.2–3.3) | |||
| Quintile 3 versus 1 | 0.9 (0.2–3.3) | |||
| Quintile 4 versus 1 | 1.6 (0.4–6.3) | |||
| Quintile 5 versus 1 | 8.5 (2.5–29.3) | |||
| Ruptured aneurysm | 88 (82%) | 14 (38%) | 0.8 (0.3–1.9) | .62 |
| Median follow-up (yr) | 10.5 | 10 | 1.0 (0.98–1.14) | .20 |
↵a Size range in quintiles: quintile 1 = 2–5 mm; quintile 2 = 6–8 mm; quintile 3 = 9–12 mm; quintile 4 = 13–15 mm; quintile 5 = 16–30 mm.