Tendências das taxas de mortalidade por Linfoma não-Hodgkin no Brasil

Abstract

Lymphomas represent the third most commonly diagnosed malignant tumor in the 0-15 year olds. Sixty percent of the cases are non-Hodgkin's lymphomas (NHL), which present high rates of lethality if not treated. With the increase in global incidence rate, the management, control and epidemiological characterisation should be carefully performed. The objective of the present study was to describe the mortality rate trends of NHL in Brazil from 1996 to 2014. It is a study of temporal aggregates. Data related to deaths between 1996 and 2014 were obtained from the Sistema de Informação sobre Mortalidade (SIM), in the database of the Departamento de Informática do Sistema Único de Saúde (DATASUS)/Ministério da Saúde. Mortality rates were adjusted by the world population. The results represent annual reduction or increase, both adjusted by the number of deaths due to unidentified causes. Of the total deaths due to NHL, 27.597 (44,2%) occurred in females and 34.822 (55,8%) in males, with a ratio of approximately 1,26 men for every woman. In this 18-year period, gross rates were 2,12 for men and 1,62 for women, totalling 1,87 for both sexes, data confirmed by surveys conducted in other regions of the country and around the world. The rate trends in NHL mortality differed in many criteria and were higher in males and elderly individuals, suggesting different risk factors and differences in the quality of information systems, as well as a direct and proportional relationship with the age group investigated.