Hormonal Exposures and Intracranial Meningioma Risk in Women
Author Information
Author(s): Brian Custer, W. T. Longstreth Jr., Leslie E. Phillips, Thomas D. Koepsell, Gerald Van Belle
Primary Institution: University of Washington
Hypothesis
The study investigates the association between oral contraception or hormone replacement therapy and the risk of intracranial meningioma in women.
Conclusion
The study found little evidence of associations between meningioma and exogenous hormone exposures in women.
Supporting Evidence
- Risk of meningioma appeared modestly elevated in past OC users.
- Current use of OC showed a higher odds ratio but with wide confidence intervals.
- Only 1% of tumors expressed estrogen receptors, while 92% expressed progesterone receptors.
Takeaway
The study looked at whether taking birth control or hormone therapy affects the chances of getting a brain tumor called meningioma in women, and it found not much connection.
Methodology
A population-based, matched case-control study was conducted with 143 cases and 286 controls matched on age.
Potential Biases
Selection bias could play a role in the findings due to the methods used for control recruitment.
Limitations
The study relied on self-reported exposures, which may be subject to recall bias, and the sample sizes for specific combinations of exposures were insufficient.
Participant Demographics
The study included 143 women with intracranial meningioma and 286 matched controls, primarily Caucasian, with a mean age difference of 0.9 years.
Statistical Information
Confidence Interval
95% CI 0.8 – 2.7 for past OC users; 95% CI 0.5 – 12.6 for current users.
Digital Object Identifier (DOI)
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