Evidence map›Paper›PMID 32420316›Full record

ReviewERJ open research2020

Relationship between dietary patterns and COPD: a systematic review and meta-analysis.

Michael K Parvizian, Manreet Dhaliwal, Jeremy Li, Imran Satia, Om P Kurmi

Abstract readReview
PubMed Full text at PMC Publisher
In one paragraph

Review in ERJ open research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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

21 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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  3. Identifying risk factors for COPD and adult-onset asthma: an umbrella review.European respiratory review : an official journal of the European Respiratory Society · 2023
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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

5 authors.

Michael K ParvizianDept of Medicine, McMaster University, Hamilton, ON, Canada.ORCID https://orcid.org/0000-0003-4167-7467
Manreet DhaliwalDept of Medicine, McMaster University, Hamilton, ON, Canada.
Jeremy LiDept of Medicine, McMaster University, Hamilton, ON, Canada.
Imran SatiaDept of Medicine, Division of Respirology, McMaster University, Hamilton, ON, Canada.
Om P KurmiDept of Medicine, Division of Respirology, McMaster University, Hamilton, ON, Canada.ORCID https://orcid.org/0000-0002-9518-4716

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFindings from previous studies reporting on the associations between chronic obstructive pulmonary disease (COPD) and various dietary patterns have been inconsistent. This review aims to summarise the evidence on the strength of the association between dietary patterns and the prevalence and incidence of COPD.

methodsWe conducted a comprehensive search of seven databases between 1 January 1980 and 30 November 2019. Two reviewers independently reviewed each manuscript through the screening, selection, data extraction and quality assessment stages. Data from eight observational studies that met the inclusion criteria were extracted and random-effects meta-analysis was subsequently conducted.

resultsEight observational studies (all eight reporting on healthy dietary patterns and three on unhealthy dietary patterns) met the inclusion criteria and data were extracted to include in the meta-analysis. Consumption of a healthy dietary pattern was associated with a lower risk of COPD (pooled OR 0.88, 95% CI 0.82-0.94). Consumption of unhealthy dietary patterns was associated with a higher risk of COPD (OR 1.22, 95% CI 0.84-1.76); however, the results were not statistically significant and had high heterogeneity (I

conclusionOur results suggests that healthy dietary patterns are associated with a lower prevalence of COPD, while unhealthy dietary patterns are not. More studies, particularly adequately powered longitudinal studies, are needed to further elucidate the effects of healthy and unhealthy dietary patterns on risk of COPD.

Identifiers

PMID32420316
PMCPMC7211952

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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.