Which demographic is most commonly affected by meningioma?

Meningiomas are primarily tumors that arise from the meninges, which are the protective membranes covering the brain and spinal cord. These tumors are most commonly diagnosed in women, with a significant prevalence observed in those during their 40s. Research indicates that hormonal factors, particularly the influence of estrogen, may play a role in the development of meningiomas, thus contributing to their higher incidence in women.

The age group of women in their 40s is particularly noted for a peak in diagnosis, reflecting a combination of hormonal influences and the overall incidence rate. This demographic trend is supported by clinical findings in neurosurgical literature, which often details the age and gender distributions of patients who undergo treatment for meningiomas.

In contrast, other demographics like men in their 30s or 50s do not demonstrate the same prevalence in association with meningiomas, highlighting the distinctive pattern seen in middle-aged women. Overall, the information correlates with clinical observations and studies on meningioma occurrences, substantiating the reasoning behind why women in their 40s represent the demographic most commonly affected.