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Evaluation of breast cancer screening indicators in the female population using the National Health System, Brazil,
Jeane Tomazelli1, Maria Beatriz Kneipp Dias2, Caroline Madalena Ribeiro2
1Instituto Nacional de Câncer, Divisão de Pesquisa Populacional, Rio de Janeiro, RJ, Brazil.
Objetive:
to analyze breast cancer screening monitoring indicators in the female population using the Brazilian National Health System, from 2018 to 2019.
Methods:
this was a descriptive study based on Cancer Information System (SISCAN) data; screening indicators were calculated following deterministic linkage of the mammography and histopathology databases.
Results:
in 2018, 807,430 women aged 50 to 69 years were screened for breast cancer, 91% of whom had a benign result, 1.8% probably benign, 6.7% inconclusive results and 0.5% results suggestive of cancer; the positive mammogram rate was 9.0%; biopsy was estimated to be indicated for 1.6% of the women, 33.9% of whom had a malignant result, and the cancer confirmation rate was 5.4 per 1,000 women.
Conclusion:
high benign lesion loss to follow-up was identified; the positive mammogram rate was lower than the international parameter, but the cancer detection rate was adequate and the percentage of inconclusive mammograms was acceptable.
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