Table 3. Predictors of Unfavorable Outcomes in ris-VADAs.
| Variables | Favorable Outcomes(n = 47) | Unfavorable Outcomes(n = 10) | Total(n = 57) | pValue | P, Regression(OR, 95% CI) |
| Age, y, Mean±SD | 47.11±9.44 | 56.90±10.88 | 0.021 | 0.040 (1.090, 1.004–1.184) | |
| Sex, n (%) | 1.000 | ||||
| Male | 24 (83) | 5 (17) | 29 | ||
| Female | 23 (82) | 5 (18) | 28 | ||
| Hunt&Hess Scale, no. (%) | 0.000 | 0.022 (4.289, 1.232–14.933) | |||
| I–II | 39 (91) | 4 (9) | 43 | ||
| III | 8 (73) | 3 (27) | 11 | ||
| IV | 0 (0) | 3 (100) | 3 | ||
| PICA Involvement | 0.388 | ||||
| Yes | 23 (77) | 7 (23) | 30 | ||
| No | 24 (89) | 3 (11) | 27 | ||
| Aneurysmal Type, no. (%) | 0.616 | ||||
| Dilatation without stenosis | 26 (79) | 7 (21) | 33 | ||
| Dilatation with stenosis | 21 (88) | 3 (12) | 24 | ||
| Blood Supply to Basilar Artery | 1.000 | ||||
| Predominant | 12 (86) | 2 (14) | 14 | ||
| Equal | 35 (81) | 8 (19) | 43 | ||
| Maximum dimension (mm) | 0.387 | ||||
| <10 | 30 (86) | 5 (14) | 35 | ||
| 10–25 | 16 (73) | 6 (27) | 22 | ||
| Treatment Interval | 1.000 | ||||
| ≤72 h | 31 (84) | 6 (16) | 37 | ||
| >72 h | 16 (80) | 4 (20) | 20 | ||
| Stent(s) Implantation, no. (%) | 0.434 | ||||
| Single stent+coils | 28 (88) | 4 (12) | 32 | ||
| Multiple stents+coils | 19 (76) | 6 (24) | 25 | ||
| Coils, no. (%) | 0.069 | 0.210 (2.899, 0.550–15.294) | |||
| Bare Coils | 33 (89) | 4 (11) | 37 | ||
| Modified(Hydrocoil/soft) Coils | 14 (70) | 6 (30) | 20 | ||
| Obliteration Grade, no. (%) | 0.694 | ||||
| Complete obliteration | 13 (76) | 4 (24) | 17 | ||
| Partial obliteration | 34 (85) | 6 (15) | 40 |
OR, odds ratio; CI, confidence interval; ris-VADAs, the ruptured intracranial spontaneous vertebral artery dissection aneurysms; OR, odds ratio; CI, confidence interval; PICA, the posterior inferior cerebellar artery.