Ortiz-Rodríguez SP, Torres-Mejía G, Mainero-Ratchelous F, Ángeles-Llerenas A, López-Caudana AE, Lazcano-Ponce E, Romieu I

Idioma: Español
Referencias bibliográficas: 26
Paginas: 126-135
Archivo PDF: 202.34 Kb.

RESUMEN

Objetivo. Evaluar el efecto de la actividad física moderada (en horas por semana y METs-hora por semana) sobre el riesgo de cáncer de mama (CM). Material y métodos. Se trata de la primera fase de un estudio multicéntrico de casos y controles con base poblacional que se desarrolló en el Distrito Federal, Monterrey y Veracruz, México, en el año 2004. Se analizaron 58 casos y 58 controles pareados a los casos por quinquenio de edad, y pertenencia al sistema de salud; participaron tres hospitales del Instituto Mexicano del Seguro Social, tres del Instituto de Seguridad Social al Servicio de los Trabajadores del Estado y tres de la Secretaría de Salud. Resultados. En mujeres posmenopáusicas se observó una reducción del riesgo de CM por cada hora semanal adicional de actividad física moderada (RM= 0.91; IC95% 0.85-0.97); en mujeres premenopáusicas, la disminución del riesgo no tuvo significancia estadística (RM= 0.99; IC95% 0.94-1.05) (p= 0.048, modificación de efecto). Conclusiones. La actividad física reduce el riesgo de CM en mujeres mexicanas posmenopáusicas.

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