Comparison of Early- and Late-Stage Breast and Colorectal Cancer Diagnoses During vs Before the COVID-19 Pandemic | Breast Cancer | JN Learning | AMA Ed Hub [Skip to Content]
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Comparison of Early- and Late-Stage Breast and Colorectal Cancer Diagnoses During vs Before the COVID-19 Pandemic

Educational Objective
To identify the key insights or developments described in this article

Breast and colorectal cancers are often detected through routine screening of asymptomatic individuals. Effective cancer screening has led to improvements in survival as a result of increased detection of earlier-stage cancer, while decreasing the incidence of late-stage cancer diagnoses.1,2 The ongoing COVID-19 pandemic has posed a substantial challenge in cancer care by disrupting cancer screening procedures such as mammograms and colonoscopies.3 We sought to compare the incidence of early- and late-stage breast and colorectal cancer diagnoses during vs before the COVID-19 pandemic among patients at our institution.

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CME Disclosure Statement: Unless noted, all individuals in control of content reported no relevant financial relationships. If applicable, all relevant financial relationships have been mitigated.

Article Information

Accepted for Publication: December 23, 2021.

Published: February 15, 2022. doi:10.1001/jamanetworkopen.2021.48581

Open Access: This is an open access article distributed under the terms of the CC-BY License. © 2022 Zhou JZ et al. JAMA Network Open.

Corresponding Author: Jade Zifei Zhou, MD, PhD, Moores Cancer Center at University of California San Diego Health, 3855 Health Sciences Dr, MC 0829, La Jolla, CA 92093-0829 (jzzhou@health.ucsd.edu).

Author Contributions: Drs Gold and Zhou had full access to all the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis.

Concept and design: Gold.

Acquisition, analysis, or interpretation of data: All authors.

Drafting of the manuscript: Zhou, Ramsey, Gold.

Critical revision of the manuscript for important intellectual content: Zhou, Kane, Akhondzadeh, Banerjee, Shatsky, Gold.

Statistical analysis: Shatsky, Gold.

Administrative, technical, or material support: Kane, Ramsey, Akhondzadeh, Gold.

Supervision: Shatsky, Gold.

Conflict of Interest Disclosures: Dr Gold reported receiving personal fees from AstraZeneca; personal fees from Takeda, Rakuten, and Regeneron; and grants from Pfizer and Pharmacyclics outside the submitted work. No other disclosures were reported.

Additional Contributions: We thank Jing Zhang, MSc (Moores Cancer Center, University of California San Diego Health), for assistance with statistical analysis. There was no financial compensation for this contribution.

References
1.
Nelson  HD , Fu  R , Cantor  A , Pappas  M , Daeges  M , Humphrey  L .  Effectiveness of breast cancer screening: systematic review and meta-analysis to update the 2009 U.S. Preventive Services Task Force recommendation.   Ann Intern Med. 2016;164(4):244-255. doi:10.7326/M15-0969 PubMedGoogle ScholarCrossref
2.
Shaukat  A , Mongin  SJ , Geisser  MS ,  et al.  Long-term mortality after screening for colorectal cancer.   N Engl J Med. 2013;369(12):1106-1114. doi:10.1056/NEJMoa1300720 PubMedGoogle ScholarCrossref
3.
Mitchell  EP .  Declines in cancer screening during COVID-19 pandemic.   J Natl Med Assoc. 2020;112(6):563-564. doi:10.1016/j.jnma.2020.12.004 PubMedGoogle ScholarCrossref
4.
Lee  JH , Mohamed  T , Ramsey  C ,  et al.  A hospital-wide intervention to improve compliance with TNM cancer staging documentation.   J Natl Compr Canc Netw. 2021;1-10. doi:10.6004/jnccn.2020.7799 PubMedGoogle Scholar
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