Cancer mortality in the Mexican Social Security Institute, 1989-2013

Abstract

Objective. To analyze cancer mortality in affiliates of the Mexican Social Security Institute (Instituto Mexicano del Seguro Social -IMSS) and time trends in the risk of death due to cancer from 1989 to 2013. Materials and methods. A descriptive analysis of cancer mortality trends in beneficiaries of the IMSS was performed. Age-and sex-adjusted mortality rates were obtained using direct standardization with the WHO population. Changes in the risk of death due to cancer over time were evaluated using Poisson regression. Results. The absolute number of deaths due to cancer doubled from 1989 to 2013 due to increasing age of the affiliate population. The risk of death among affiliates decreased for the majority of cancers except for colon and rectal cancer. Conclusion. The risk of dying from cancer among IMSS affiliates showed a marked decrease, which may be due to an increase in detection and opportune treatment. ResumenObjetivo. Analizar la frecuencia de las defunciones por cáncer en la población derechohabiente (DH) del Instituto Mexicano del Seguro Social, así como la tendencia temporal en el riesgo de muerte por esta causa de 1989 a 2013. Material y métodos. Se realizó análisis descriptivo del comportamiento de la mortalidad por cáncer en población derechohabiente del IMSS. Las tasas de mortalidad ajustadas por edad y sexo se obtuvieron con el método directo utilizando la población mundial estándar de la OMS. Los cambios en el riesgo de morir por cáncer a través del tiempo se evaluaron mediante regresión de Poisson. Resultados. El número absoluto de defunciones por cáncer se duplicó de1989 a 2013 debido a un aumento y al envejecimiento de la población derechohabiente. El riesgo de muerte en los DH disminuyó para la mayoría de los diferentes tipos de cáncer, excepto para el cáncer de colon y recto. Conclusión. El riesgo de morir por cáncer en DH del IMSS muestra una discreta disminución, posiblemente debido a la mejora en la detección y tratamiento oportuno.

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