Evidence map›Paper›PMID 29235561›Full record

SynthesisEuropean journal of clinical nutrition2018

Fruit and vegetable intake and cognitive impairment: a systematic review and meta-analysis of observational studies.

Tayebeh Mottaghi, Farzad Amirabdollahian, Fahimeh Haghighatdoost

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in European journal of clinical nutrition, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 6 pooled it
3.7field-weighted citation impact, top 7% 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

46 citing papers in PubMed, 6 syntheses or guidelines pooled it, 88 citations in OpenAlex.

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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

3 authors at 2 institutions in 2 countries.

Tayebeh MottaghiDepartment of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.
Farzad AmirabdollahianSchool of Health Sciences, Liverpool Hope University, Hope Park, Liverpool, UK.
Fahimeh HaghighatdoostDepartment of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran. f_haghighatdoost@yahoo.com.
Isfahan University of Medical Sciences · IRLiverpool Hope University · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

objectivesEpidemiological studies investigating the association between fruit and vegetable consumption and cognitive function have produced inconclusive findings. The aim of this review was to systematically investigate if increased fruit and vegetable consumption is linked with decreased risk of cognitive impairment (CI).

methodsWe conducted a systematic literature search using four databases (PubMed, Embase, Cochrane Library, and Scopus) in October 2016 and identified cohort and cross-sectional studies, which estimated the risk of CI for fruit and vegetable consumption. The pooled odds ratio (OR) and 95% confidence interval (CI) were estimated by using a random effects model.

resultsThe six studies meeting inclusion criteria offered 10 effect sizes and the total of 17,537 participants in the analysis. Increased fruit and vegetable intake was associated with reduced risk of CI (OR: 0.79; 95% CI: 0.67-0.93; P = 0.006). The subgroup analysis demonstrated that in studies conducted in China (but not in Western countries), the corresponding reduction in risk of CI risk was significant (OR: 0.74; 95% CI: 0.61, 0.89; P = 0.002) and the relationship between fruits, vegetables, and CI did not differ by study design, type of exposure, and gender.

conclusionIncreased fruit and vegetable consumption is associated with the reduced risk of CI; however, such association might be dependent on the geographical region. Further prospective studies specifically designed to compare vegetables and fruit varieties, and also to determine the recommended amounts to prevent CI are warranted.

Indexed as

CognitionDietFeeding BehaviorFruitVegetablesAgedAged, 80 and overCognitive DysfunctionFemaleHumansMaleObservational Studies as Topic

Identifiers

PMID29235561
OpenAlexW2770214400

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.