Breast cancer in the health insurance system of Jundiaí: data on 105 patients / Câncer de mama no sistema de saúde suplementar de Jundiaí: dados de 105 pacientes

ABSTRACT

Introduction: The data related to breast cancer's epidemiology in Brazil are heterogenous, reflecting the country's socioeconomic inequalities. Significant number of cases of this disease are attended through the health insurance system, but data on these cases is poorly disseminated. Objective: To evaluate epidemiological data on breast cancer from patients attended through the health insurance system in the municipality of Jundiaí, São Paulo. Methods: This was a retrospective study conducted through reviewing the medical files of 105 patients diagnosed with breast cancer, who were attended between January 2014 and December 2015. The information gathered included age, clinical staging, histological type, immunohistochemical profile, surgical treatment and adjuvant treatment. Results: The study included 105 patients with breast cancer who were treated exclusively within the health insurance system of Jundiaí. The patients' mean age was 50.8 years. We observed that 13 patients (12.3%) were diagnosed with ductal carcinoma in situ (stage 0), 43 (40.9%) with stage I, 34 (32.3%) with stage II, 11 (10.4%) with stage III and 2 (1.9%) with stage IV. Conservative surgery was performed on 76 patients (72.3%), while 29 (27.7%) underwent mastectomy. Among the latter, immediate reconstruction was performed in 82.7% (24) of the cases. Conclusion: The high rates of early diagnosis and conservative surgery show that screening for breast cancer within the health insurance system of the municipality of Jundiaí, has been effective. Accessible mammography and the socioeconomic level of the population seem to be the main factors responsible for the obtained findings.