Tendência temporal e distribuição regional dos benefícios previdenciários concedidos por câncer de mama entre 2007 e 2018 no Brasil

Abstract

Breast cancer was the leading cause of cancer incidence and ranked fifth for cancer mortality in both sexes worldwide in 2020. In Brazil, breast cancer incidence rates increased 40,0% between 1990 and 2017 and it was the most frequent recorded cause of disability benefits granted to women affiliated with the public social security system due to malignant neoplasms. In the present study, we assessed the temporal trends and regional variation in disability benefits granted to women due to breast cancer by the Brazilian Social Security Institute. We conducted an ecological study of incidence rates of disability benefits granted to women due to breast cancer, between 2007 and 2018 in Brazil, by means of analyzing the age and geographical distribution through joinpoint segmented regression. We also evaluated the proportions between benefits granted due to breast cancer and those granted due to all the conditions and malignant neoplasms. All analyses were carried out using data from the SUIBE (Sistema Único de Informações de Benefícios) and the open access social security system database. The age-adjusted incidence rates showed stability between 2007 and 2015 and increased by 6.7% (CI95% 1.0;12.8) per year after then. The number of benefits granted to women aged from 20 to 49 increased by 3.4% on average, presenting a marked rise from 2015 to 2018 (10.4% per year). From age 50, there was no change in trends over the whole period. Breast cancer was the most frequent cause of benefits granted due to malignant neoplasms in all regions. The proportions between benefits granted due to breast cancer and those granted due to all the conditions and malignant neoplasms increased from 2007 to 2018. The North region showed the highest average annual percentage increase, respectively 4.7% (CI95%: 3.8;5.5) and 1.2% (CI95%: 0.6;1.8). This study highlighted the importance of breast cancer as the leading cause of sick leave due to malignant neoplasms in Brazilian women, showing a gradually increase among younger ones, who are economically active and therefore more likely to suffer with the negative impact of absenteeism.