ArticlePreventive medicine reports2023
Impact of the COVID-19 pandemic on the breast cancer early diagnosis program in Brazil.
Article in Preventive medicine reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
4 citing papers in PubMed.
- Barriers and facilitators of the implementation of mammography screening in the Brazilian public health system: scoping review.BMC public health · 2025Article
- Cancer screening in Japan 2 years after the COVID-19 pandemic: Changes in participation, 2017-2021.Preventive medicine reports · 2024Article
- COVID-19 and Breast Cancer Diagnosis in Brazil: An Analogy to the Sinking of the Titanic.JCO global oncology · 2023Article
- Two Years Post-COVID-19: An Ecologic Study Evaluating the Impact on Brazil's Mammographic Screening Program.Cancer control : journal of the Moffitt Cancer CenterObservational
Corrections and comments
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
During the COVID-19 pandemic, several screening exams were postponed, including mammograms. The aim of this study was to evaluate the impact of COVID-19 in mammographic screening in Brazil, considering 2015 to 2021. This was descriptive ecologic study based on the retrospective data of Brazil's mammographic screening program. A Brazilian national screening database (DATASUS - SISCAN (Cancer System Information)) was used as the data source, and the data in this database are publicly available for download and analysis. We report the number of screening rate from January 2015 to December 2021, using 2020 as reference year for COVID-19. From 2015 to 2021, 10,763,894 mammograms were performed and included in the analysis. Reductions of 39.6% and 13.3% were found in 2020 in 2021, respectively. During the pandemic's peak, the reduction was more pronounced, with maximum reductions of 82.4% in May 2020 and 34.8% in April 2021. There was an increase in the number of mammograms performed on high-risk patients from 11.2% in 2020 to 13.9% in 2021. This research demonstrated a decline in the breast cancer screening rate during the two years of the COVID-19 pandemic; this reduction will increase the burden of advanced breast cancer, potentially impacting morbidity and mortality related to this neoplasm.
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Registered trials
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