Los investigadores extractaron los datos de 20 estudios poblacionales con más de un millón de personas y de 16 estudios comparativos que involucraban 4.000 casos de mujeres que habían sufrido ictus y de unas 11.000 no afectadas por tal patología.
Los datos de los estudios poblacionales señalaban que no había incremento de los índices de ictus en mujeres que habían tomado anticonceptivos orales de baja dosis.
El análisis de estudios de casos control mostraban un incremento de riesgo de ictus en usuarias de anticonceptivos orales, pero sólo de los causados por trombos y no por hemorragias cerebrales.
Los resultados de estos estudios arrojan dudas sobre la verdadera asociación entre los anticonceptivos orales de baja dosis y el ictus. Según los autores, considerando las limitaciones de los estudios originales y las escasas diferencias estadísticas, la relación entre estos anticonceptivos y el riesgo de ictus es, al menos, muy poco fiable y quizá inexistente.
Webs Relacionadas
University of Toronto
http://www.utoronto.ca/
Archives of Internal Medicine
http://archinte.ama-assn.org/
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