Evidence map›Paper›PMID 27535548›Full record

SynthesisBMC cancer2016

Type 2 diabetes mellitus and risk of colorectal adenoma: a meta-analysis of observational studies.

Feifei Yu, Yibin Guo, Hao Wang, Jian Feng, Zhichao Jin, Qi Chen, Yu Liu, Jia He

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in BMC cancer, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Metformin and colorectal cancer: a systematic review, meta-analysis and meta-regression.International journal of colorectal disease · 2020 · on this map
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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

8 authors at 2 institutions in 2 countries.

Feifei YuMedical Service Research Division, Navy Medical Research Institute, Shanghai, China.
Yibin GuoDepartment of Health Statistics, Second Military Medical University, No. 800 Xiangyin Road, Shanghai, 200433, China.
Hao WangDepartment of Colorectal Surgery, Changhai Hospital, Shanghai, China.
Jian FengDepartment of Health Statistics, Second Military Medical University, No. 800 Xiangyin Road, Shanghai, 200433, China.
Zhichao JinDepartment of Health Statistics, Second Military Medical University, No. 800 Xiangyin Road, Shanghai, 200433, China.
Qi ChenDepartment of Health Statistics, Second Military Medical University, No. 800 Xiangyin Road, Shanghai, 200433, China.
Yu LiuCollege of Art & Science, University of San Francisco, San Francisco, USA.
Jia HeDepartment of Health Statistics, Second Military Medical University, No. 800 Xiangyin Road, Shanghai, 200433, China. hejia63@yeah.net.
Second Military Medical University · CNUniversity of San Francisco · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo summarize the relationship between type 2 diabetes mellitus (T2DM) and risk of colorectal adenomas (CRA), we performed a meta-analysis of observational studies.

methodsTo find studies, we searched PubMed, Embase, the Cochrane Library, Web of Science and conference abstracts and related publications for American Society of Clinical Oncology and the European Society of Medical Oncology. Studies that reported relative risks (RRs) or odds ratios (ORs) with 95 % confidence intervals (CIs) for the association between T2DM and risk of CRA were included. The meta-analysis assessed the relationships between T2DM and risk of CRA. Sensitivity analyses were performed in two ways: (1) by omitting each study iteratively and (2) by keeping high-quality studies only. Publication bias was detected by Egger's and Begg's tests and corrected using the trim and fill method.

resultsThis meta-analysis included 17 studies with 28,999 participants and 6798 CRA cases. We found that T2DM was a risk factor for CRA (RR: 1.52; 95 % CI: 1.29-1.80), and also for the advanced adenoma (RR: 1.41; 95 % CI: 1.06-1.87). Patients with existing T2DM (RR: 1.56; 95 % CI: 1.16-2.08) or newly diagnosed T2DM (RR: 1.51; 95 % CI: 1.16-1.97) have a risk of CRA. Similar significant results were found in retrospective studies (RR: 1.57; 95 % CI: 1.30-1.89) and population based cross-sectional studies (RR: 1.46; 95 % CI: 1.21-1.89), but not in prospective studies (RR: 1.27; 95 % CI: 0.77-2.10).

conclusionsOur results suggested that T2DM plays a risk role in the risk of developing CRA. Consequently, medical workers should increase the rate of CRA screening for T2DM patients so that they can benefit from behavioural interventions that can help prevent the development of colorectal cancer. Additional, large prospective cohort studies are needed to make a more convincing case for these associations.

Indexed as

Case-Control StudiesColorectal NeoplasmsDiabetes Mellitus, Type 2FemaleHumansInsulinMaleObservational Studies as TopicRisk FactorsInsulinColorectal adenomaMeta-analysisType 2 diabetes mellitus

Identifiers

PMID27535548
PMCPMC4989384
OpenAlexW2509999422

What OpenQuestion holds

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LicenceCC BY
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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.