Evidence map›Paper›PMID 33536317›Full record

ArticleBMJ (Clinical research ed.)2021

Associations of cereal grains intake with cardiovascular disease and mortality across 21 countries in Prospective Urban and Rural Epidemiology study: prospective cohort study.

Sumathi Swaminathan, Mahshid Dehghan, John Michael Raj, Tinku Thomas, Sumathy Rangarajan, David Jenkins, Prem Mony, Viswanathan Mohan, Scott A Lear, Alvaro Avezum and 23 more

Open access · hybridAbstract readMulticenter Study
In one paragraph

Article in BMJ (Clinical research ed.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 4 pooled it
19.4field-weighted citation impact, top 1% 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

55 citing papers in PubMed, 4 syntheses or guidelines pooled it, 133 citations in OpenAlex.

  1. Sustainable dietary recommendations for the Spanish population.European journal of clinical nutrition · 2026
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  7. Whole Grains Perspective: Porridge or Popcorn.The Journal of nutrition · 2026
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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

33 authors at 20 institutions in 21 countries.

Sumathi SwaminathanSt John's Research Institute, Bangalore, India.
Mahshid DehghanPopulation Health Research Institute (PHRI), McMaster University, Hamilton Health Sciences, Hamilton, ON, Canada Mahshid.dehghan@phri.ca.ORCID 0000-0003-2149-847X
John Michael RajSt John's Medical College, Bangalore, India.
Tinku ThomasSt John's Medical College, Bangalore, India.
Sumathy RangarajanPopulation Health Research Institute (PHRI), McMaster University, Hamilton Health Sciences, Hamilton, ON, Canada.
David JenkinsDepartment of Nutritional Sciences and Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, ON, Canada.
Prem MonySt John's Research Institute, Bangalore, India.
Viswanathan MohanMadras Diabetes Research Foundation and Dr Mohan's Diabetes Specialities Centre, Chennai, India.
Scott A LearFaculty of Health Sciences, Simon Fraser University, Vancouver, BC, Canada.
Alvaro AvezumInternational Research Centre, Hospital Alemao Oswaldo Cruz, Sao Paulo, Brazil, Universidade Santo Amaro (UNISA), Sao Paulo, Brazil.
Patricio Lopez-JaramilloMasira Research Institute, Medical School, Santander University (UDES), Colombia.
Annika RosengrenDepartment of Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Fernando LanasUniversidad de La Frontera, Temuco, Chile.
Khalid F AlHabibDepartment of Cardiac Sciences, King Fahad Cardiac Center, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
Antonio DansUniversity of Philippines, Section of Adult Medicine and Medical Research Unit, Manila, Philippines.
Mirac Vural KeskinlerDepartment of Internal Medicine, Istanbul Medeniyet University Goztepe Training and Research Hospital, Istanbul, Turkey.
Thandi PuoaneUniversity of the Western Cape, Bellville, South Africa.
Biju SomanHealth Action by People, Thiruvananthapuram, Kerala, India.
Li WeiNational Centre for Cardiovascular Diseases, Cardiovascular Institute and Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing, China.
Katarzyna ZatonskaWroclaw Medical University, Department of Social Medicine, Wroclaw, Poland.
Rafael DiazEstudios Clinicos Latinoamerica ECLA, Rosario, Santa Fe, Argentina.
Noorhassim IsmailDepartment of Community Health, Faculty of Medicine, University Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
Jephat ChifambaPhysiology Department, College of Health Sciences, University of Zimbabwe, Harare, Zimbabwe.
Roya KelishadiIsfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.
Afzalhussein YusufaliDubai Medical University, Hatta Hospital, Dubai Health Authority, Dubai, United Arab Emirates.
Rasha KhatibInstitute for Community and Public Health, Birzeit University, Birzeit, Palestine.
Liu XiaoyunNational Centre for Cardiovascular Diseases, Cardiovascular Institute and Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing, China.
Hu BoNational Centre for Cardiovascular Diseases, Cardiovascular Institute and Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing, China.
Romaina IqbalDepartments of Community Health Sciences and Medicine, Aga Khan University, Karachi, Pakistan.
Rita YusufSchool of Life Sciences, Independent University, Bangladesh, Dhaka, Bangladesh.
Karen YeatesDepartment of Medicine, Queen's University, Kingston, ON, Canada.
Koon TeoPopulation Health Research Institute (PHRI), McMaster University, Hamilton Health Sciences, Hamilton, ON, Canada.
Salim YusufPopulation Health Research Institute (PHRI), McMaster University, Hamilton Health Sciences, Hamilton, ON, Canada.
Population Health Research Institute · CAChinese Academy of Medical Sciences & Peking Union Medical College · CNSt.John's Medical College Hospital · INAdvocate Health Care · USAga Khan University · PKDubai Health Authority · AEEstudios Clínicos Latinoamérica · ARHospital Alemão Oswaldo Cruz · BRIndependent University · BDIsfahan University of Medical Sciences · IRIstanbul Medeniyet University · TRKing Saud University · SAMadras Diabetes Research Foundation · INQueen's University · CASahlgrenska University Hospital · SESimon Fraser University · CASree Chitra Thirunal Institute for Medical Sciences and Technology · INUniversidad de La Frontera · CLUniversidad De Santander · COUniversity Kebangsaan Malaysia Medical Centre · MY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate the association between intakes of refined grains, whole grains, and white rice with cardiovascular disease, total mortality, blood lipids, and blood pressure in the Prospective Urban and Rural Epidemiology (PURE) study.

designProspective cohort study.

settingPURE study in 21 countries.

participants148 858 participants with median follow-up of 9.5 years. EXPOSURES: Country specific validated food frequency questionnaires were used to assess intakes of refined grains, whole grains, and white rice.

main outcome measureComposite of mortality or major cardiovascular events (defined as death from cardiovascular causes, non-fatal myocardial infarction, stroke, or heart failure). Hazard ratios were estimated for associations of grain intakes with mortality, major cardiovascular events, and their composite by using multivariable Cox frailty models with random intercepts to account for clustering by centre.

resultsAnalyses were based on 137 130 participants after exclusion of those with baseline cardiovascular disease. During follow-up, 9.2% (n=12 668) of these participants had a composite outcome event. The highest category of intake of refined grains (≥350 g/day or about 7 servings/day) was associated with higher risk of total mortality (hazard ratio 1.27, 95% confidence interval 1.11 to 1.46; P for trend=0.004), major cardiovascular disease events (1.33, 1.16 to 1.52; P for trend<0.001), and their composite (1.28, 1.15 to 1.42; P for trend<0.001) compared with the lowest category of intake (<50 g/day). Higher intakes of refined grains were associated with higher systolic blood pressure. No significant associations were found between intakes of whole grains or white rice and health outcomes.

conclusionHigh intake of refined grains was associated with higher risk of mortality and major cardiovascular disease events. Globally, lower consumption of refined grains should be considered.

Indexed as

Feeding BehaviorWhole GrainsAdultAgedCardiovascular DiseasesDietary CarbohydratesDiet SurveysEnergy IntakeFemaleGlobal HealthHumansLongitudinal StudiesMaleMiddle AgedOryzaProportional Hazards ModelsDietary Carbohydrates

Identifiers

PMID33536317
PMCPMC7856570
OpenAlexW3128883832

What OpenQuestion holds

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LicenceCC BY-NC
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.