Figure 4.

(A) Sex-specific distribution of IA locations before cohort matching. ACOM aneurysms were the most common in both male and female patients. However, the distribution of other locations was more heterogeneous in female patients, with many IAs located in the MCA, ICA, and basilar artery, in descending order. (B) Sex-specific distribution of IA locations after cohort matching. The distribution in male patients remained unchanged, with ACOM aneurysms being the most frequent. In female patients, the frequency of ACOM aneurysms decreased, and the distribution became even more heterogeneous, as previously described. (C) Results of the statistical analysis showing the prevalence of multiple aneurysms by sex, indicating that female patients are more frequently affected by multiple aneurysms. * highlights significant results.