JAMA Netw Open 2021 Sep 1;4(9):e2126334. Epub 2021 Sep 1.
Department of Gastroenterology and Hepatology, Yokohama City University School of Medicine, Kanazawa-ku, Yokohama, Japan.
Importance: The COVID-19 pandemic has delayed medical consultations, possibly leading to the diagnosis of gastrointestinal cancer at advanced stages.
Objective: To evaluate stage at diagnosis among patients with gastrointestinal cancer in Japan before and during the COVID-19 pandemic.
Design, Setting, And Participants: This retrospective cohort study included patients in a hospital-based cancer registry who were diagnosed with gastrointestinal cancer (ie, esophageal, gastric, colorectal, pancreatic, liver, and biliary tract cancers) between January 2016 and December 2020 at 2 tertiary Japanese hospitals. Read More