Estudo epidemiológico do carcinoma ductal in situ em Goiânia: análise de 16 anos (1994-2010)

Abstract

Objective: To analyze the temporal evolution of DCIS in residents of Goiânia during the period 1994-2010. Methods: It used the database of the Population Based Cancer Registries of Goiania (RCBPGo), cases coded as carcinoma in situ of the breast in females, at (ONCOSIS) program in Goiânia, between 1994 and 2010. It was later made individual search of histopathological reports of DCIS. We sought to identify the temporal evolution of standardized and crude incidence of DCIS. The incidence rates, crude, as standard, set by the global population Doll, were calculated by age groups to 10 years from 30 years, and was estimated to MPMA using Poisson Regression to these age groups. They calculated the disease-free survival and overall survival at 60 and 120 months, using the Kaplan-Meier method. The data on DCIS deaths were obtained from the Mortality Data System (SIM), the medical record information and the electoral higher court (TSE). Results: In the initial database were recorded 376 cases of DCIS. In reviewing the reports, 114 cases were excluded because it is not dealt with DCIS. Of the 282 cases of DCIS in the period studied, there were four cases in 1994 and 21 in 2010. The crude rate of annual incidence of DCIS was 1.33/100,000 in 1994, and of 4.21/100,000 in 2010. The adjusted incidence for the world population Doll was 0.58/100,000 in 1994, and of 1.85/100,000 in 2010. The average annual percentual change (AAPC) of the crude incidence rate for the period was 11.93% per year (95 9-15% CI; P <0.01) and standardized incidence rate of 11.94% per year (95% CI 9-15; p <0.01). There were 17 cases of local recurrence, 16 invasive ductal carcinomas and only one case of in situ recurrence. Three cases evolved with distant metastases. The cumulative rate of local recurrence was 3,9% at 60 months and 10% to 120 months. Overall survival was 96,5% and 91,9% at 60 and 120 months, respectively. The cancer-specific survival was 99,5% at 60 months and 98,4% at 120 months. Abstract xvii Conclusions: The study showed that there are a large number of cases that need to be recoded by changing the initial bank. Thus, we suggest that the highest injury potential aggressiveness is described first, standardized reports and the training of collectors, so there are no unknown information to transcribe the DCIS for RCBP the chips. There was an increasting incidence of DCIS rate in Goiânia, possibly related to mammographic screening. Despite the small number of local recurrences when appeared they arose mostly with invasion. Still, it was confirmed in the studied group high overall survival rate after 10 years of treatment.