3 | Result
3.1. Characteristics of the Study Population
The records of 164 patients diagnosed with GBM in Guilan Province from 2014 to 2018 were retrospectively analyzed. The study cohort had a mean age of 54.34 ± 14.16 years, ranging from 3 to 82 years. Among these, 106 patients (64.6%) were 60 years or younger, and 98 (59.8%) were male. The higher prevalence in men and patients aged 60 years or younger was statistically significant (p < 0.001) (Table 1). Moreover, the tumor site displayed overlapping characteristics in 112 patients, constituting 68% of the cases. The most prevalent specific locations were the frontal lobe in 17 cases (10%), the temporal lobe in 11 cases (7%), and the parietal lobe in 10 cases (6%) Figure 1 .