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October 24, 2026Journal of the Anus Rectum and ColonOpen Access

Impact of the COVID-19 Pandemic on Inpatient Colorectal Cancer Treatment in Japan: An Interrupted Time Series Analysis Using a National Administrative Database

Kensuke Nitta Makoto Okawara Jun Nagata Hiroto Sannomiya Atsuhiro Koga Yasuki Akiyama Masumi Yamauchi Yoshihisa Fujino Kiyohide Fushimi Shinya Matsuda Keiji Hirata

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Abstract

Background: The COVID-19 pandemic disrupted elective endoscopy and non-urgent procedures, but its impact on inpatient colorectal cancer (CRC) treatment in Japan remains incompletely quantified.

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Nitta et al. (2026) studied this question.

synapsesocial.com/papers/6ae03e6e497ccca5e7f2aa6c https://doi.org/10.23922/jarc.2026-010

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