Evidence map›Paper›PMID 23001240›Full record

Trial reportCancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology2012

Iron in relation to gastric cancer in the Alpha-tocopherol, Beta-carotene Cancer Prevention Study.

Michael B Cook, Farin Kamangar, Stephanie J Weinstein, Demetrius Albanes, Jarmo Virtamo, Philip R Taylor, Christian C Abnet, Richard J Wood, Gayle Petty, Amanda J Cross and 1 more

Open access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 18% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Dietary Iron Intake and Risk of Gastric Cancer.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

11 authors at 6 institutions in 2 countries.

Michael B CookDivision of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, 6120 Executive Blvd, EPS/Suite 550/Room 5014, Bethesda, MD 20852-7234, USA. michael.cook@nih.gov
Farin Kamangar
Stephanie J Weinstein
Demetrius Albanes
Jarmo Virtamo
Philip R Taylor
Christian C Abnet
Richard J Wood
Gayle Petty
Amanda J Cross
Sanford M Dawsey
Jean Mayer Human Nutrition Research Center on Aging · USMorgan State University · USNational Institutes of Health · USTufts University · USFinnish Institute for Health and Welfare · FINational Cancer Institute · US

Funding

Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) StudyZIACP010195 · NCI · DIVISION OF CANCER EPIDEMIOLOGY AND GENETICS · PI ALBANES, DEMETRIUS · 2009 to 2025
$22.5M
UGI Cancer Genetic StudiesZIACP000150 · NCI · DIVISION OF CANCER EPIDEMIOLOGY AND GENETICS · PI TAYLOR, PHILIP · 2009 to 2011
$4.1M
Intramural NIH HHS Z99 CA999999Intramural NIH HHS ZIA CP000150NCI NIH HHS Y99 CA999999
6 · The paper itself

Abstract

backgroundIron is an essential micronutrient that can have carcinogenic effects when at high or low concentrations. Previous studies of iron in relation to gastric cancer have not assessed subtype-specific relationships. We used the prospective Alpha-Tocopherol, Beta-Carotene (ATBC) Cancer Prevention Study to assess whether iron metrics were associated with gastric cardia cancer (GCC) and gastric noncardia cancer (GNCC).

methodsWe selected 341 incident gastric cancer cases (86 cardia, 172 noncardia, and 83 nonspecified), accrued during 22 years of follow-up, and 341 individually matched controls. We measured prediagnostic serum iron, ferritin, unsaturated iron binding capacity, and C-reactive protein. Total iron-binding capacity (TIBC) and transferrin saturation were estimated from these metrics. Dietary iron exposures were estimated from a food frequency questionnaire. Multivariable logistic regression was used for analysis.

resultsSerum iron metrics were not associated with GCC, except for a potential "n"-shaped relationship with TIBC (global P = 0.038). GNCC was inversely associated with serum ferritin (global P = 0.024), serum iron (global P = 0.060) and, possibly, transferrin saturation. TIBC appeared to share a "u"-shaped relationship with GNCC (global P = 0.033). Dietary iron exposures were not associated with either subsite. Adjustment for Helicobacter pylori and gastric atrophy had little effect on observed associations.

conclusionsWe found little evidence for the involvement of iron exposure in the pathogenesis of GCC. GNCC was associated with an iron profile similar to that of iron deficiency. IMPACT: Our findings indicate that inverse associations between iron metrics and gastric cancer are driven by associations with GNCC. Further elucidation of potential mechanisms is warranted.

Indexed as

Agedalpha-Tocopherolbeta CaroteneCase-Control StudiesDouble-Blind MethodFerritinsFinlandHumansIronMaleMiddle AgedPlacebosRisk FactorsStomach NeoplasmsTransferrinalpha-Tocopherolbeta CaroteneFerritinsIronPlacebosTransferrin

Identifiers

PMID23001240
PMCPMC3493744
OpenAlexW2122563990

What OpenQuestion holds

Textmetadata
LicenceTDM
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.