Evidence map›Paper›PMID 33028558›Full record

ArticleBMJ open2020

Association of tea consumption and the risk of gastric cancer in Japanese adults: the Japan Collaborative Cohort Study.

Haytham Sheerah, Liu Keyang, Ehab Salah Eshak, Renzhe Cui, Kokoro Shirai, Isao Muraki, Hiroyasu Iso, Akiko Tamakoshi

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.3field-weighted citation impact, top 38% 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

5 citing papers in PubMed, 9 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

8 authors at 3 institutions in 2 countries.

Haytham SheerahPublic Health, Department of Socia Medicine, Osaka University Graduate School of Medicine, Suita-shi, Osaka-fu, Japan.
Liu KeyangPublic Health, Department of Socia Medicine, Osaka University Graduate School of Medicine, Suita-shi, Osaka-fu, Japan.
Ehab Salah EshakPublic Health, Department of Socia Medicine, Osaka University Graduate School of Medicine, Suita-shi, Osaka-fu, Japan.ORCID 0000-0002-3564-1938
Renzhe CuiPublic Health, Department of Socia Medicine, Osaka University Graduate School of Medicine, Suita-shi, Osaka-fu, Japan.
Kokoro ShiraiPublic Health, Department of Socia Medicine, Osaka University Graduate School of Medicine, Suita-shi, Osaka-fu, Japan.
Isao MurakiPublic Health, Department of Socia Medicine, Osaka University Graduate School of Medicine, Suita-shi, Osaka-fu, Japan.
Hiroyasu IsoPublic Health, Department of Socia Medicine, Osaka University Graduate School of Medicine, Suita-shi, Osaka-fu, Japan iso@pbhel.med.osaka-u.ac.jp.ORCID 0000-0002-9241-7289
Akiko TamakoshiDepartment of Public Health, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan.
The University of Osaka · JPHokkaido University · JPMinia University · EG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo examine the possible relationship between tea consumption and risk of gastric cancer (GC) among Japanese men and women included in a large Japanese population-based study titled the Japan Collaborative Cohort (JACC) Study.

designProspective cohort study.

settingA population-based cohort included subjects who were recruited from 24 areas of JACC Study, in which data regarding the incidence of cancer were available.

participants63 848 participants (26 025 men and 37 823 women), aged 40-79, were included in the analyses and underwent follow-up (median 13.3 years) prospectively in research on cancer incidence. PRIMARY AND SECONDARY OUTCOME MEASURES: The primary outcome variable was the risk of GC according to the frequency intakes of total tea, green tea, black tea and oolong tea. The adjusted HRs for the risk of GC associated with tea consumption were calculated using the Cox proportional hazards model.

results1494 cases of GC were detected (960 men and 534 women) during the follow-up period. The multivariable-adjusted HRs for the risk of GC in the highest versus lowest quintiles of total tea intake were 1.05 (0.83-1.33); p trend=0.50 in men, and 0.82 (0.60-1.12); p trend=0.45 in women. There was no association found between the consumption of green tea, black tea or oolong tea with the risk for GC in either gender.

conclusionsIn this large community-based prospective cohort study, tea consumption was not associated with the risk of GC in either gender.

Indexed as

Stomach NeoplasmsTeaAdultAgedCohort StudiesFemaleHumansJapanMaleMiddle AgedProspective StudiesRisk FactorsTeablack teagastric cancergreen teaoolong teatotal tea

Identifiers

PMID33028558
PMCPMC7539605
OpenAlexW3092463310

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

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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.