Evidence map›Paper›PMID 39164425›Full record

ArticleSurgery today2025

Impact of the coronavirus disease 2019 pandemic on the number of colorectal cancer surgeries performed: analysis of a nationwide inpatient database in Japan.

Miyako Tazawa, Nobutoshi Nawa, Shinichi Yamauchi, Masanori Tokunaga, Kiyohide Fushimi, Yusuke Kinugasa, Takeo Fujiwara

Abstract read
PubMed Publisher
In one paragraph

Article in Surgery today, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Miyako TazawaDepartment of Gastrointestinal Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
Nobutoshi NawaDepartment of Public Health, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
Shinichi YamauchiDepartment of Gastrointestinal Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
Masanori TokunagaDepartment of Gastrointestinal Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
Kiyohide FushimiDepartment of Health Policy and Informatics, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
Yusuke KinugasaDepartment of Gastrointestinal Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
Takeo FujiwaraDepartment of Public Health, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan. fujiwara.hlth@tmd.ac.jp.

Funding

Grant-in-Aid for Research on Policy Planning and Evaluation from the Ministry of Health, Labour and Welfare, Japan 22AA2003
6 · The paper itself

Abstract

purposeThis study examined the impact of the COVID-19 pandemic on the number of colorectal cancer surgeries performed in Japan.

methodsWe selected patients who underwent colorectal cancer surgeries between January, 2017 and December, 2020 from the Diagnosis Procedure Combination database. The COVID-19 pandemic was divided into three waves. We evaluated the changes in the number of surgeries performed for colorectal cancer during each wave, stratified by cancer stage using Poisson regression.

resultsDuring the first wave, the rate ratio (RR) for stage III colon cancer decreased significantly (RR, 0.94), whereas those for stages 0 to II (RR, 1.01) and stage IV (RR, 1.04) were not different. During the second and third waves, the RR for stage 0 to II colon cancer decreased significantly (RR, 0.96), that for stage IV increased (RR, 1.09), and that for stage III was not different (RR, 0.97). During the first wave, the RR for stage 0 to II rectal cancer increased significantly (RR, 1.09), that for stage IV decreased (RR, 0.84), and that for stage III was not different (RR, 0.97).

conclusionsThe number of colorectal cancer surgeries changed during the pandemic and varied according to the stage of disease.

Indexed as

Colorectal NeoplasmsCOVID-19PandemicsAgedDatabases, FactualFemaleHumansInpatientsJapanMaleMiddle AgedNeoplasm StagingColorectal cancerColorectal surgeryCOVID-19Diagnosis Procedure Combination (DPC)

Identifiers

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.