학술논문

Breast cancer diagnosis and treatment during the COVID-19 pandemic in a nationwide, insured population.
Document Type
Academic Journal
Author
Caswell-Jin JL; Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA. caswell@stanford.edu.; Center for Clinical Sciences Research, Stanford University School of Medicine, Room 1145C, Stanford, CA, 94305-5405, USA. caswell@stanford.edu.; Shafaee MN; Dan L Duncan Cancer, Baylor College of Medicine, Houston, TX, USA.; Xiao L; Department of Epidemiology & Population Health, Stanford University School of Medicine, Stanford, CA, USA.; Liu M; Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA.; Department of Epidemiology & Population Health, Stanford University School of Medicine, Stanford, CA, USA.; John EM; Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA.; Department of Epidemiology & Population Health, Stanford University School of Medicine, Stanford, CA, USA.; Bondy ML; Department of Epidemiology & Population Health, Stanford University School of Medicine, Stanford, CA, USA.; Kurian AW; Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA.; Department of Epidemiology & Population Health, Stanford University School of Medicine, Stanford, CA, USA.
Source
Publisher: Kluwer Academic Country of Publication: Netherlands NLM ID: 8111104 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1573-7217 (Electronic) Linking ISSN: 01676806 NLM ISO Abbreviation: Breast Cancer Res Treat Subsets: MEDLINE
Subject
Language
English
Abstract
Purpose: The early months of the COVID-19 pandemic led to reduced cancer screenings and delayed cancer surgeries. We used insurance claims data to understand how breast cancer incidence and treatment after diagnosis changed nationwide over the course of the pandemic.
Methods: Using the Optum Research Database from January 2017 to March 2021, including approximately 19 million US adults with commercial health insurance, we identified new breast cancer diagnoses and first treatment after diagnosis. We compared breast cancer incidence and proportion of newly diagnosed patients receiving pre-operative systemic therapy pre-COVID, in the first 2 months of the COVID pandemic and in the later part of the COVID pandemic.
Results: Average monthly breast cancer incidence was 19.3 (95% CI 19.1-19.5) cases per 100,000 women and men pre-COVID, 11.6 (95% CI 10.8-12.4) per 100,000 in April-May 2020, and 19.7 (95% CI 19.3-20.1) per 100,000 in June 2020-February 2021. Use of pre-operative systemic therapy was 12.0% (11.7-12.4) pre-COVID, 37.7% (34.9-40.7) for patients diagnosed March-April 2020, and 14.8% (14.0-15.7) for patients diagnosed May 2020-January 2021. The changes in breast cancer incidence across the pandemic did not vary by demographic factors. Use of pre-operative systemic therapy across the pandemic varied by geographic region, but not by area socioeconomic deprivation or race/ethnicity.
Conclusion: In this US-insured population, the dramatic changes in breast cancer incidence and the use of pre-operative systemic therapy experienced in the first 2 months of the pandemic did not persist, although a modest change in the initial management of breast cancer continued.
(© 2022. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)