TABLE 3.
Multivariate Cox analysis for rebleeding before surgery in the primary cohort.
| Characteristics | HR | 95% CI | P value |
| Hypertension (Yes vs. No) | 2.54 | (1.02–6.31) | 0.044+ |
| Bifurcation (Yes vs. No) | 1.95 | (1.12–3.07) | 0.013+ |
| Irregular shape (Yes vs. No) | 4.22 | (1.68–10.62) | 0.002+ |
| Aneurysm size | 1.07 | (0.90–1.28) | 0.450 |
| AR | 12.91 | (4.74–35.13) | <0.001+ |
| SR | 0.93 | (0.65–1.34) | 0.659 |
| Bottleneck ratio | 0.93 | (0.35–2.42) | 0.704 |
| Height-to-width ratio | 3.52 | (0.73–16.97) | 0.496 |
| NWSSA | 0.16 | (0.01–0.28) | 0.002+ |
| WSSG | 1.09 | (0.93–1.26) | 0.153 |
| LSAR | 0.15 | (0.01–2.87) | 0.226 |
| OSI | 1.14 | (1.06–1.23) | <0.001+ |
+The independent risk factor associated with rebleeding.
AR, aspect ratio; SR, size ratio; NWSSA, normalized wall shear stress average; WSSG, wall shear stress gradient; LSAR, low shear area ratio; OSI, oscillatory shear index.