Objective: To evaluate the prevalence and risk factors for endometrial malignancies in asymptomatic postmenopausal women.
Methods: Multicentric retrospective analytical study in two Brazilian Reference Centers. All women without postmenopausal bleeding who were submitted to hysteroscopy with biopsy were included (1665). Excluded women without anatomopathological results (625) and whose medical records were incomplete (37). The variables analyzed were age; parity; body mass index; duration of menopausal status; systemic arterial hypertension; diabetes mellitus; use of hormone replacement therapy; use of tamoxifen; duration of use of tamoxifen; endometrial thickness and biopsy results.
Results: The frequency of endometrial malignancies in asymptomatic postmenopausal women was 2.39%. Endometrial thickness ≥8 mm increased the chance of endometrial malignancies, even more, with an endometrial thickness ≥12.55 mm the chance of endometrial malignancies increased by 4.68 times ( < .001 and 95% CI: 1.99-11.03).
Conclusion: The prevalence of endometrial malignancies was low and the only risk factor for endometrial malignancies in asymptomatic postmenopausal women was endometrial thickness.
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