ArticleEinstein (Sao Paulo, Brazil)2021
The delay of breast cancer diagnosis during the COVID-19 pandemic in São Paulo, Brazil.
Article in Einstein (Sao Paulo, Brazil), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
13 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.
- A systematic review of the impact of the COVID-19 pandemic on breast cancer screening and diagnosis.Breast (Edinburgh, Scotland) · 2023Pooled it
- Disruption to diabetes and hypertension care during the COVID-19 pandemic in Latin America and the Caribbean and mitigation approaches: a scoping review.BMC health services research · 2025Article
- Breast cancer and cervical cancer: a comparison of the period before and during the COVID-19 pandemic.BMC women's health · 2024Article
- Repercussions of the COVID-19 pandemic on breast cancer actions in a Brazilian state.Investigacion y educacion en enfermeria · 2024Article
- Article
- Changes in the number of cancer diagnosis practices due to the COVID-19 pandemic: interrupted time-series analysis using the National Database of Japan.Journal of cancer research and clinical oncology · 2023Article
- Impact of the COVID-19 pandemic on the breast cancer early diagnosis program in Brazil.Preventive medicine reports · 2023Article
- Frequency and factors associated with delay in breast cancer treatment in Brazil, according to data from the Oncology Panel, 2019-2020.Epidemiologia e servicos de saude : revista do Sistema Unico de Saude do Brasil · 2023Article
- Article
- Factors associated with the time to treat breast cancer in the pandemic period: an observational study.Revista brasileira de enfermagem · 2023Observational
- Lymphadenopathies before and during the Pandemic COVID-19: Increasing Incidence of Metastases from Solid Tumors.Journal of clinical medicine · 2022Article
- Determinants of COVID-19 Outcome as Predictors of Delayed Healthcare Services among Adults ≥50 Years during the Pandemic: 2006-2020 Health and Retirement Study.International journal of environmental research and public health · 2022Article
- Covid-19 Pandemic Impact on Breast Cancer Detection-The Major Effects Over an Early Diagnosis.Current health sciences journalArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo evaluate the impact of COVID-19 pandemic on breast cancer diagnosis in a breast imaging center.
methodsThis was a retrospective cohort study that included women submitted to breast exams and procedures in a private hospital in São Paulo, SP, Brazil, as from the period of most strict social isolation measures, in 2020 (separated in first period of social isolation, March 24 to June 21, 2020, and second period, June 22 to December 31, 2020), as compared to the same period in 2019. The number of exams, cancer detection rates, pathologic findings and risk factors were analyzed.
resultsA total of 32,144 patients were included in the study. Breast imaging exams and procedures decreased by 78.9% in the first period, and 2.7% in the second period, in 2020. By the end of 2020, the number of breast cancer lesions detected was just six cases less than in 2019, although the number of patients submitted to mammograms was 35% lower.
conclusionThere was a drop in number of breast exams and cancer diagnoses in the first 90 days of the pandemic. The decrease in diagnosis of cancer was partially compensated in the second period, but the number of patients submitted to mammograms by the end of 2020 was lower, still considering a large number of patients with delayed exams.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.