Meta-analysis2016

Association between nut consumption and coronary heart disease: a meta-analysis

Weng YQ, Yao J, Guo ML, Qin QJ, Li P

Coronary artery disease · 13 citations

Review labels

Funding not disclosed

Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.

How it was studied

Design
Meta-analysis (indexed by PubMed)
Studied in
People
Main outcome
Clinical events such as disease or death
Intake measured by
Not stated

Who paid for it

Funding
Funding not disclosed

Publication

Published
2015-12-24 · Coron Artery Dis · vol. 27 · issue 3 · pp. 227–232
Publisher
Lippincott Williams & Wilkins
Cited
15 citations · more than 75% of similar papers · 0.9× the field average
References
33 works
Access
Paywalled
Research areas
Nuts composition and effects · Oral Health Pathology and Treatment · Botany, Ecology, and Taxonomy Studies
Keywords
Medicine, Relative risk, Nut, Confidence interval, Publication bias, Meta-analysis, Random effects model, Demography, Consumption (sociology), Coronary heart disease, Epidemiology, Internal medicine
MeSH
humans, nuts, coronary disease, linear models, odds ratio, risk assessment, risk factors, least-squares analysis, risk reduction behavior, time factors, recommended dietary allowances, protective factors, diet, healthy

5 authors

From CN

  • Yunqi Weng · correspondingQingdao University
  • Jian YaoQingdao University
  • Minglei GuoQingdao University
  • Qiaoji Qin · correspondingQingdao University
  • Peng LiQingdao University

Abstract

Objectives

Epidemiological studies evaluating the association of nut consumption with coronary heart disease (CHD) risk have produced inconsistent results. The current study aimed to assess the CHD risk for the highest versus the lowest categories of nut consumption, the dose-response association of CHD for every 1 serving/week increment in nut consumption, and the heterogeneity among studies and publication bias.

Methods

Pertinent studies were identified by a search in PubMed and Web of Knowledge up to January 2014. A random-effect model was used to combine the results. The dose-response relationship was assessed by restricted cubic spline and variance-weighted least squares regression analysis. Publication bias was estimated using Egger's regression asymmetry test.

Results

Ten articles with 14 studies including 6302 CHD cases were included in this meta-analysis. Pooled results suggested that highest nut consumption amount versus lowest amount was associated significantly with a reduced risk of CHD [summary relative risk (RR)=0.681, 95% confidence interval (CI)=0.592-0.783, I(2)=62.7%], especially among USA (summary RR=0.671, 95% CI=0.591-0.761) and prospective studies (summary RR=0.660, 95% CI=0.581-0.748). A linear dose-response relationship was found, and the risk of CHD decreased by 10% for every 1 serving/week increase intake of nut (summary RR=0.90, 95% CI=0.87-0.94) No publication bias was found.

Conclusion

Our analysis suggested that higher nut consumption might have a protective effect on CHD risk, especially in the USA, which needs to be confirmed.

Abstract via Europe PMC. Copyright remains with the authors or publisher.

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