Evidence map›Paper›PMID 20697723›Full record

SynthesisEuropean journal of nutrition2011

Is dietary fat associated with the risk of colorectal cancer? A meta-analysis of 13 prospective cohort studies.

Liu Liu, Wen Zhuang, Ruo-Qi Wang, Rajarshi Mukherjee, Shuo-Meng Xiao, Zhong Chen, Xiao-Ting Wu, Yong Zhou, Hai-Yan Zhang

Abstract readMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in European journal of nutrition, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 6 pooled it
1.0field-weighted citation impact, top 23% 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

27 citing papers in PubMed, 6 syntheses or guidelines pooled it, 60 citations in OpenAlex.

  1. Pooled it
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  6. System review and metaanalysis of the relationships between five metabolic gene polymorphisms and colorectal adenoma risk.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2012
    Pooled it
  7. Article
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  10. Review
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  13. Epidemiology beyond its limits.Science advances · 2022
    Article
  14. Article
  15. Yogurt consumption and colorectal polyps.The British journal of nutrition · 2020
    Article
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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

9 authors at 5 institutions in 2 countries.

Liu LiuDepartment of Gastrointestinal Surgery, The Second Affiliated Hospital of Nan Chang University, 330006, Nanchang City, Jiangxi Province, China. wkjyliu@gmail.com
Wen Zhuang
Ruo-Qi Wang
Rajarshi Mukherjee
Shuo-Meng Xiao
Zhong Chen
Xiao-Ting Wu
Yong Zhou
Hai-Yan Zhang
Sichuan University · CNWest China Hospital of Sichuan University · CNNanchang University · CNUniversity of Liverpool · GBYoujiang Medical College for Nationalities · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe results of animal studies suggest there is a significant role for dietary fat in the development of colorectal cancer (CRC). However, inconsistent results have been reported by epidemiological studies. AIM OF STUDY: To evaluate the association between total dietary fat and risk of colorectal cancer development using a meta-analysis based on prospective cohort studies.

methodsPublished literature was retrieved from Medline, Embase and CNKI (China Knowledge Resource Integrated Database) databases updated to 1st May, 2009. Overall, thirteen prospective cohort studies with 3,635 cases and 459,910 participants were included.

resultsThe combined relative risk (RR) [95% confidence interval (95%CI)] for the risk of CRC was 0.99 (0.89,1.09) when the highest level of total dietary fat was versus (vs.) the lowest level. Stratified analyses according to gender, ethnicity, country and age showed that the highest level of total dietary fat did not increase the risk of CRC [RR (95%CI): 0.89 (0.77,1.03) for males; 1.09 (0.94,1.26) for females; 1.08 (0.94,1.25) for Caucasians; 0.90 (0.77,1.04) for Asians; 1.13 (0.94,1.36) for Americans; 0.92 (0.81,1.04) for individuals older than 40]. Besides those, the highest level of total fat diet also did not increase the risk of neither colon cancer [RR (95%CI): 0.96 (0.82,1.13)] nor rectal cancer [RR (95%CI):1.07 (0.63,1.82)]. Furthermore, neither animal fat nor plant fat were associated with the risk of CRC [RR (95%CI): 1.05 (0.91-1.22) for animal fat and 0.96 (0.82-1.11) for plant fat].

conclusionsThis meta-analysis suggests that dietary fat may not be associated with the increased risk of CRC. More well-designed studies with larger population performed among Asians are needed to further evaluate the associations. In addition, probable bias caused by measurement error should be noticed in this meta-analysis, and measurement error needs to be adjusted in the future studies.

Indexed as

AdultAsian PeopleChinaColonic NeoplasmsDietary FatsFemaleHumansMaleProspective StudiesRisk FactorsWhite PeopleDietary Fats

Identifiers

PMID20697723
OpenAlexW1978204085

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.