Table 1.
Baseline data in the two groups
| Baseline data | Microsurgical clipping group | Arterial embolization group | χ2/t | P |
|---|---|---|---|---|
| Case (n) | 30 | 38 | ||
| Age (year) | 50.1±7.8 | 52.5±7.5 | 0.853 | 0.396 |
| Gender (male/female) | 12/18 | 14/24 | 0.071 | 0.790 |
| BMI (kg/m²) | 25.74±2.77 | 25.26±2.81 | 1.029 | 0.469 |
| Smoking | 15 | 12 | 2.376 | 0.123 |
| Drinking | 13 | 17 | 0.295 | 0.587 |
| Presence of high blood pressure | 15 | 17 | 0.186 | 0.666 |
| Presence of diabetes | 18 | 24 | 0.071 | 0.790 |
| Presence of hypercholesterolemia | 16 | 19 | 0.075 | 0.785 |
| Presence of cardiovascular disease | 11 | 15 | 0.056 | 0.813 |
| Hunt-Hess classification | 0.118 | 0.990 | ||
| Grade I | 10 | 14 | ||
| Grade II | 10 | 12 | ||
| Grade III | 7 | 8 | ||
| Grade IV | 3 | 4 | ||
| Aneurysm diameter (mm) | 0.076 | 0.963 | ||
| Diameter <5 mm | 14 | 19 | ||
| 5 mm ≤ diameter <15 mm | 10 | 12 | ||
| 15≤ diameter <25 mm | 6 | 7 | ||
| Number of aneurysms | 0.369 | 0.543 | ||
| Single tumor | 12 | 18 | ||
| Multiple tumors | 18 | 20 |
Note: BMI: body mass index.