Table 2.
Univariate and multivariate analyses using CRstalk ≥ 0.60 as cut-off for aneurysm enhancement.
| Variable | Univariate | Multivariate | ||
|---|---|---|---|---|
| OR (95% CI) | P | OR (95% CI) | P | |
| Age | 1.05 (1.01-1.10) | 0.007 | 1.12 (1.05-1.19) | 0.001 |
| Sex (women) | 1.67 (0.48-5.78) | 0.42 | - | - |
| Hypertension | 1.27 (0.55-2.98) | 0.57 | - | - |
| Hyperlipidemia | 1.22 (0.53-2.83) | 0.65 | - | - |
| Smoking | 1.36 (0.59-3.19 | 0.47 | - | - |
| History of previous SAH | 2.54 (0.40-16.03) | 0.32 | - | - |
| Aspirin* | 0.46 (0.15-1.36) | 0.17 | 0.22 (0.06-0.83) | 0.026 |
| Size (≥7 mm) | 6.15 (2.42-15.65) | <0.001 | 21.3 (4.88-92.8) | <0.001 |
| Location† | 2.22 (0.94-5.24) | 0.07 | 10.7 (2.45-46.5) | 0.002 |
CI: confidence interval; ER: enhancement ratio; OR: odds ratio; P: p-value; SAH: subarachnoid hemorrhage.
*
Refers to daily intake of ≥81 mg of aspirin during the last 6 months.
†
Refers to location in the anterior communicating, posterior communicating and basilar arteries.