TABLE 1.
Baseline characteristics of patients in the training dataset.
| Variables | Unruptured (N = 141) | Ruptured (N = 297) | p-Value |
| Agea | 59.0 (53.0, 69.0) | 55.0 (48.0, 64.3) | 0.004 |
| Femalea | 77.0 (54.6%) | 173.0 (58.2%) | 0.472 |
| Hypertensionb | 75.0 (68.8%) | 149.0 (55.4%) | 0.016 |
| Smokingc | 30.0 (28.0%) | 77.0 (28.6%) | 0.909 |
| Location | 0.016 | ||
| M1 | 51.0 (36.2%) | 72.0 (24.2%) | |
| Mbif | 85.0 (60.3%) | 219.0 (73.7%) | |
| Mdist | 5.0 (3.5%) | 6.0 (2.0%) | |
| Side | 0.862 | ||
| Right | 81.0 (57.4%) | 168.0 (56.6%) | |
| Left | 60.0 (42.6%) | 129.0 (43.4%) | |
| Multiplicity | 63.0 (44.7%) | 66.6 (22.2%) | <0.001 |
| Vessel size (mm) | 2.5 (2.1, 2.8) | 2.4 (2.0, 2.6) | 0.002 |
| Aneurysm size (mm) | 5.6 (4.0, 7.8) | 6.7 (5.0, 9.1) | 0.001 |
| Neck size (mm) | 4.2 (3.3, 5.5) | 3.9 (3.1, 4.8) | 0.018 |
| Aspect ratio | 0.8 (0.5, 1.1) | 1.0 (0.8, 1.4) | <0.001 |
| Size ratio | 1.6 (1.0, 2.3) | 2.3 (1.6, 3.4) | <0.001 |
| Aneurysm height (mm) | 4.1 (2.6, 5.4) | 5.1 (3.9, 6.9) | <0.001 |
| Perpendicular height (mm) | 3.3 (2.3, 4.6) | 4.1 (3.0, 5.5) | <0.001 |
| Aneurysm angle (°) | 65.4 (53.5, 81.4) | 61.4 (48.1, 76.5) | 0.014 |
| Vessel angle (°) | 57.1 (37.4, 77.7) | 64.3 (41.4, 78.4) | 0.134 |
| Flow angle (°) | 135.8 (111.4, 158.5) | 137.8 (116.2, 159.2) | 0.319 |
| Daughter dome | 18.0 (12.8%) | 102.0 (34.3%) | <0.001 |
| Irregular shape | 48.0 (34.0%) | 179.0 (60.3%) | <0.001 |
a3/438 (0.68%) missing values. b60/438 (13.70%) missing values. c62/438 (14.16%) missing values. M1, the proximal segment of the middle cerebral artery; Mbif, main middle cerebral artery bifurcation; Mdist, distal middle cerebral artery.