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. 2023 May 8;32(2):e2022567.
doi: 10.1590/S2237-96222023000200009. eCollection 2023.

Evaluation of breast cancer screening indicators in the female population using the National Health System, Brazil, 2018-2019: a descriptive study

[Article in English, Portuguese]
Jeane Tomazelli  1 , Maria Beatriz Kneipp Dias  2 , Caroline Madalena Ribeiro  2 , Mônica de Assis  2 , Maria Asunción Sole Pla  2 , Ellyete de Oliveira Canella  3 , Arn Migowski  2
Affiliations

Evaluation of breast cancer screening indicators in the female population using the National Health System, Brazil, 2018-2019: a descriptive study

[Article in English, Portuguese]
Jeane Tomazelli et al. Epidemiol Serv Saude. .

Abstract
in English, Portuguese, Spanish

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.

Objetivo:: analisar indicadores de monitoramento do rastreamento do câncer de mama na população feminina usuária do Sistema Único de Saúde, Brasil, no período 2018-2019.

Métodos:: estudo descritivo, a partir do Sistema de Informação do Câncer; foram calculados indicadores de rastreamento após relacionamento determinístico das bases de dados de mamografia e histopatologia.

Resultados:: em 2018, 807.430 mulheres na faixa etária de 50-69 anos foram rastreadas, e dessas, 91% apresentaram resultado benigno, 1,8% provavelmente benigno, 6,7% inconclusivo e 0,5% sugestivo de câncer; a taxa de mamografia positiva foi de 9,0%; estimou- -se indicação de biópsia para 1,6% das mulheres, resultado maligno para 33,9% delas, e taxa de confirmação de câncer de 5,4 por 1 mil mulheres.

Conclusão:: identificou-se elevada perda de seguimento das lesões benignas; a taxa de mamografias positivas foi inferior ao parâmetro internacional; contudo, a taxa de detecção de câncer foi adequada, e o percentual de mamografias inconclusivas, aceitável.

Objetivo:: analizar indicadores del tamizaje de cáncer de mama en población femenina atendida por Sistema Único de Salud Brasileño, de 2018-2019.

Métodos:: estudio descriptivo basado en Sistema de Información del Cáncer (Siscan). Los indicadores de detección se calcularon después de vinculación determinista de bases de datos de mamografía e histopatología.

Resultados:: en 2018, 807.430 mujeres de 50-69 años examinaram cáncer de mama. De estos, 91% tuvo resultado benigno, 1,8% probablemente benigno, 6,7% resultado no concluyente y 0,5% sugestivo de cáncer. La tasa de mamografías positivas fue 9,0%. Se estimó indicación de biopsia en 1,6% de las mujeres, resultado maligno en 33,9% y tasa de confirmación de cáncer de 5,4 por 1.000 mujeres.

Conclusión:: se identificó alta pérdida de seguimiento de las lesiones benignas. La tasa de mamografías positivas fue inferior al parámetro internacional, pero la tasa de detección de cáncer fue adecuada y el porcentaje de mamografías no concluyentes aceptable.

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Conflict of interest statement

CONFLICTS OF INTEREST: The authors declare they have no conflicts of interest.

Figures

Figure 1
Figure 1. - Flowchart showing selection of females screened for breast cancer by the National Health System, Brazil, 2018
Figure 2
Figure 2. - Flowchart showing selection of records of females aged 50-69 who had pathology tests for breast cancer diagnosis on the National Health System, Brazil, 2018-2019
Figure 3
Figure 3. - Flowchart showing calculation of cancer screening indicators in females 50-69 years old using the National Health System, Brazil, 2018-2019
See this image and copyright information in PMC

References

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