Evidence map›Paper›PMID 37368048›Full record

SynthesisInternational journal of colorectal disease2023

No association between cholecystectomy and risk of colorectal cancer: a meta-analysis of cohort studies.

Lulin Yu, Wenjing Liu, Yici Yan, Yu Jiang, Xin Gao, Shanming Ruan

Abstract readMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in International journal of colorectal disease, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 3 pooled it
6.2field-weighted citation impact, top 3% of its field
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

10 citing papers in PubMed, 3 syntheses or guidelines pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. The Post-Cholecystectomy Gut Microbiota Follows a Time-Varying Change-A Pilot Study.JGH open : an open access journal of gastroenterology and hepatology · 2025
    Article
  7. Article
  8. Review
  9. Review
  10. Article
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

6 authors at 1 institution in 1 country.

Lulin YuThe First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China.
Wenjing LiuThe First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China.
Yici YanThe First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China.
Yu JiangThe First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China.
Xin GaoThe First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China.
Shanming RuanThe First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China. shanmingruan@zcmu.edu.cn.
Zhejiang Chinese Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveCohort studies have reported an association between colorectal cancer and cholecystectomy. However, the conclusions are inconsistent. Thus, this meta-analysis will quantify the risk of colorectal cancer following cholecystectomy.

methodsPubMed, EMBASE and Cochrane Library databases were searched for relevant cohort studies. The quality of individual observational studies was assessed using the Newcastle-Ottawa Quality Assessment Scale. The relative risk of colorectal cancer after cholecystectomy was calculated using STATA 14.0 software. Subgroup and sensitivity analyses were used to examine the source of heterogeneity. Funnel plots and Egger's test were finally performed to assess the publication bias.

resultsThis meta-analysis included 14 studies comprising 2,283,616 subjects. Pooled analysis indicated that cholecystectomy was not a risk factor for colorectal cancer (Colorectal: RR 1.06; 95% CI 0.75-1.51, p = 0.739 Colon: RR 1.30; 95% CI 0.88-1.93, p = 0.182 Rectal: RR 0.99; 95% CI 0.74-1.32, p = 0.932). Subgroup showed that patients are at an increased risk of sigmoid colon following cholecystectomy (RR 1.42; 95% CI 1.27-1.58, p = 0.000). Furthermore, it was shown that both females and males undergoing cholecystectomy may have higher risks of colon cancer (Female: RR = 1.47, 95% CI 1.01-2.14, P = 0.042 Male: RR = 1.32; 95% CI 1.07-1.63, P = 0.010), which is similarly observed in the right colon (Female: RR 1.99; 95% CI 1.31-3.03, p = 0.001, P = 0.017 Male: RR 1.68; 95% CI 0.81-3.49, p = 0.166).

conclusionsNo clear evidence to support the association between cholecystectomy and an increased risk of colorectal cancer. For patients with valid indications, timely cholecystectomy could be performed without the risk of colorectal cancer.

Indexed as

Colonic NeoplasmsColorectal NeoplasmsCohort StudiesFemaleHumansMaleRisk FactorsCholecystectomyCohort studyColon cancerColorectal cancerMeta-analysisRectal cancer

Identifiers

PMID37368048
OpenAlexW4382182678

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.