Evidence map›Paper›PMID 32778880›Full record

ArticleThe American journal of clinical nutrition2020

Grain and dietary fiber intake and bladder cancer risk: a pooled analysis of prospective cohort studies.

Evan Y W Yu, Anke Wesselius, Siamak Mehrkanoon, Maree Brinkman, Piet van den Brandt, Emily White, Elisabete Weiderpass, Florence Le Calvez-Kelm, Marc Gunter, Inge Huybrechts and 7 more

Open access · hybridAbstract read
In one paragraph

Article in The American journal of clinical nutrition, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 6% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 citations in OpenAlex.

  1. Pooled it
  2. Anti-inflammatory Diet Index and Bladder Cancer Risk by Stage: A 22-Year Prospective Swedish Cohort Study (1998-2020).Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 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

17 authors at 10 institutions in 8 countries.

Evan Y W YuDepartment of Complex Genetics and Epidemiology, School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, Netherlands.
Anke WesseliusDepartment of Complex Genetics and Epidemiology, School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, Netherlands.
Siamak MehrkanoonDepartment of Data Science and Knowledge Engineering, Maastricht University, Maastricht, Netherlands.
Maree BrinkmanDepartment of Complex Genetics and Epidemiology, School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, Netherlands.
Piet van den BrandtDepartment of Epidemiology, School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, Netherlands.
Emily WhiteFred Hutchinson Cancer Research Center, Seattle, WA, USA.
Elisabete WeiderpassInternational Agency for Research on Cancer/WHO, Lyon, France.
Florence Le Calvez-KelmInternational Agency for Research on Cancer/WHO, Lyon, France.
Marc GunterInternational Agency for Research on Cancer/WHO, Lyon, France.
Inge HuybrechtsInternational Agency for Research on Cancer/WHO, Lyon, France.
Fredrik LiedbergDepartment of Urology, Skåne University Hospital, Malmö, Sweden.
Guri SkeieDepartment of Community Medicine, UIT The Arctic University of Norway, Tromsø, Norway.
Anne TjonnelandDanish Cancer Society Research Center, Copenhagen, Denmark.
Elio RiboliDepartment of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom.
Graham G GilesCancer Epidemiology Division, Cancer Council Victoria, Melbourne, Victoria, Australia.
Roger L MilneCancer Epidemiology Division, Cancer Council Victoria, Melbourne, Victoria, Australia.
Maurice P ZeegersDepartment of Complex Genetics and Epidemiology, School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, Netherlands.
Centre international de recherche sur le cancer · FRMaastricht University · NLThe University of Melbourne · AUCancer Council Victoria · AUFred Hutch Cancer Center · USImperial College London · GBLund University · SEMaastricht University Medical Centre · NLUiT The Arctic University of Norway · NOUniversity of Copenhagen · DK

Funding

COHORT STUDY OF DIETARY SUPPLEMENTS AND CANCER RISKR01CA074846 · NCI · FRED HUTCHINSON CANCER RESEARCH CENTER · PI WHITE, EMILY · 1999 to 2005
$6.8M
NCI NIH HHS R01 CA074846World Health Organization 001
6 · The paper itself

Abstract

backgroundHigher intakes of whole grains and dietary fiber have been associated with lower risk of insulin resistance, hyperinsulinemia, and inflammation, which are known predisposing factors for cancer.

objectivesBecause the evidence of association with bladder cancer (BC) is limited, we aimed to assess associations with BC risk for intakes of whole grains, refined grains, and dietary fiber.

methodsWe pooled individual data from 574,726 participants in 13 cohort studies, 3214 of whom developed incident BC. HRs, with corresponding 95% CIs, were estimated using Cox regression models stratified on cohort. Dose-response relations were examined using fractional polynomial regression models.

resultsWe found that higher intake of total whole grain was associated with lower risk of BC (comparing highest with lowest intake tertile: HR: 0.87; 95% CI: 0.77, 0.98; HR per 1-SD increment: 0.95; 95% CI: 0.91, 0.99; P for trend: 0.023). No association was observed for intake of total refined grain. Intake of total dietary fiber was also inversely associated with BC risk (comparing highest with lowest intake tertile: HR: 0.86; 95% CI: 0.76, 0.98; HR per 1-SD increment: 0.91; 95% CI: 0.82, 0.98; P for trend: 0.021). In addition, dose-response analyses gave estimated HRs of 0.97 (95% CI: 0.95, 0.99) for intake of total whole grain and 0.96 (95% CI: 0.94, 0.98) for intake of total dietary fiber per 5-g daily increment. When considered jointly, highest intake of whole grains with the highest intake of dietary fiber showed 28% reduced risk (95% CI: 0.54, 0.93; P for trend: 0.031) of BC compared with the lowest intakes, suggesting potential synergism.

conclusionsHigher intakes of total whole grain and total dietary fiber are associated with reduced risk of BC individually and jointly. Further studies are needed to clarify the underlying mechanisms for these findings.

Indexed as

DietWhole GrainsAgedDietary FiberFemaleHumansMaleMiddle AgedProspective StudiesRisk FactorsUrinary Bladder NeoplasmsDietary Fiberbladder cancercohort studydietary fiberdose-response analysisgrain

Identifiers

PMID32778880
PMCPMC7657329
OpenAlexW3048752360

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.