Descriptive Epidemiology of Intracranial Meningiomas for a Hispanic Population in Puerto Rico.

Objective: The epidemiology of meningiomas for patients with Hispanic ethnicity is mainly unknown beyond a few studies. Evidence supporting the ethnic influence over meningioma World Health Organization (WHO) grade is limited. This study aimed to investigate a Hispanic population in Puerto Rico with intracranial meningiomas regarding the WHO grade.

Methods: This study retrospectively reviewed 173 Hispanic patients who underwent pathology-proven intracranial meningioma resection by a single surgeon at a tertiary care facility during 25 years. Descriptive statistics were used to investigate clinical and histopathological differences among the patients.

Results: The cohort had 71.1% female patients, with a female-to-male ratio of 2.6:1. The median age of the patients was 53 years, ranging between 19 and 87 years. Analysis showed that 159 patients had a WHO grade 1 meningioma (91.9%), 13 patients had a WHO grade 2 meningioma (7.5%), and one patient had a WHO grade 3 meningioma (0.6%). Recurrence occurred in ten patients (5.8%).

Conclusion: This study reveals a higher percentage of Hispanic patients with WHO grade 1 meningiomas in Puerto Rico than for Hispanic patients living in the United States.