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El uso no anticonceptivo de estrógenos y el riesgo de cáncer de mama
JAMA
|July 6, 1984
Resumen
Los estrógenos no anticonceptivos, incluidos los estrógenos conjugados, se investigaron para el riesgo de cáncer de mama. Este estudio no encontró evidencia de que el uso de estas hormonas aumente el riesgo de desarrollar cáncer de mama.
Área de la Ciencia:
- Oncología Oncología.
- Endocrinología Endocrinología.
- Epidemiología La epidemiología.
Sus antecedentes:
- La terapia de estrógenos se utiliza ampliamente para los síntomas de la menopausia.
- Existen preocupaciones con respecto al posible vínculo entre el uso de estrógenos y el riesgo de cáncer de mama.
Objetivo del estudio:
- Investigar la asociación entre el uso no anticonceptivo de estrógenos y el riesgo de cáncer de mama.
- Para evaluar el riesgo específicamente para los estrógenos conjugados y otras formas de estrógenos no anticonceptivos.
Principales métodos:
- Se realizó un estudio de caso y control basado en el hospital.
- El estudio incluyó a 1.610 mujeres con cáncer de mama y 1.606 mujeres con otras afecciones.
- Las estimaciones de riesgo relativo se calcularon para el uso de estrógenos, comparando casos y controles.
Principales resultados:
- El riesgo relativo general para los estrógenos conjugados fue de 0,9 (95% IC, 0,7 a 1,1).
- El riesgo relativo para otros estrógenos fue de 0,8 (95% IC, 0,6 a 1,1).
- No se observó un aumento del riesgo en las mujeres posmenopáusicas, incluso con el uso a largo plazo o en el pasado, y en varios subgrupos de riesgo.
Conclusiones:
- El uso de estrógenos no anticonceptivos, incluidos los estrógenos conjugados, no parece aumentar el riesgo de cáncer de mama.
- Los hallazgos sugieren que la terapia con estrógenos puede usarse de manera segura sin elevar el riesgo de cáncer de mama.
- Investigaciones adicionales pueden explorar formulaciones específicas de estrógenos y duraciones de uso.
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