ArticleJCO global oncology2022
Impact of the COVID-19 Pandemic on Cancer Staging: An Analysis of Patients With Breast Cancer From a Community Practice in Brazil.
Article in JCO global oncology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 21 citations in OpenAlex.
- Subtype-specific health and economic impact of delayed breast cancer diagnosis during the early COVID-19 pandemic in Belgium: a Markov model analysis.Breast cancer research : BCR · 2025Article
- An approach to COVID‑19 and oncology: From impact, staging and management to vaccine outcomes in cancer patients: A systematic review and meta‑analysis.Experimental and therapeutic medicine · 2025Article
- The impact of the COVID-19 Pandemic on breast cancer incidence and stage: Results of a retrospective study.Qatar medical journal · 2025Article
- Impact of the COVID-19 Pandemic on Tumor Stage and Pathohistological Parameters of Vulvar Cancer.Journal of clinical medicine · 2024Article
- Impact of the COVID-19 pandemic on diagnosis of renal cell carcinoma and disease stage at presentation.Canadian Urological Association journal = Journal de l'Association des urologues du Canada · 2024Article
- Impact of the Coronavirus disease pandemic on early breast cancer.Frontiers in oncology · 2024Article
- The unacceptable situation of opportunistic screening for breast cancer in Brazil.Revista da Associacao Medica Brasileira (1992) · 2024Article
- The Impact of COVID-19 on Treatment Practices for Patients With Early Breast Cancer: A Cross-Sectional Study From a Large Cancer Center in Italy.The oncologist · 2023Review
- Impact of the COVID-19 pandemic on clinical presentation, treatments, and outcomes of new breast cancer patients: A retrospective multicenter cohort study.Cancer medicine · 2023Article
- Patient recruitment into clinical studies of solid malignancies during the COVID-19 pandemic in a tertiary cancer center.Neoplasia (New York, N.Y.) · 2023Article
- COVID-19 and Breast Cancer Diagnosis in Brazil: An Analogy to the Sinking of the Titanic.JCO global oncology · 2023Article
- Reply to R. Freitas-Junior et al.JCO global oncology · 2023Article
- A Global Review of the Impacts of the Coronavirus (COVID-19) Pandemic on Radiology Practice, Finances, and Operations.Life (Basel, Switzerland) · 2023Review
- Treatment Patterns and Outcomes of Patients with Grade 4 Glioma Treated with Radiation during the COVID-19 Pandemic.Current oncology (Toronto, Ont.) · 2023Article
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Authors and funding
18 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeA nationwide lockdown was enforced in Brazil starting in March 2020 because of the COVID-19 pandemic when cancer screening activities were reduced. In this study, we evaluated the impact of the COVID-19 pandemic on breast cancer (BC) diagnosis.
methodsWe extracted data from the medical records of patients age older than 18 years who were diagnosed with BC and started treatment or follow-up in private oncology institutions in Brazil between 2018 and 2021. The primary objective was to compare the stage distribution during the COVID-19 pandemic (2020-2021) with a historical prepandemic control cohort (2018-2019). Early BC was defined as stage I-II and advanced disease as stage IV.
resultsWe collected data for 11,753 patients with an initial diagnosis of BC, with 6,493 patients in the pandemic (2020-2021) and 5,260 patients in the prepandemic period (2018-2019). We observed a lower prevalence of early-stage BC (63.6%
conclusionWe observed a substantial increase in the number of cases of advanced-stage BC in Brazil during the COVID-19 pandemic.
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