Evidence map›Paper›PMID 23319293›Full record

ArticleInternational journal of cancer2013

Calcium intake is not related to breast cancer risk among Singapore Chinese women.

Jingmei Li, Woon-Puay Koh, Ai-Zhen Jin, Jian-Min Yuan, Mimi C Yu, Lesley M Butler

Open access · bronzeAbstract read
In one paragraph

Article in International journal of cancer, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.6field-weighted citation impact, top 31% 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

9 citing papers in PubMed, 17 citations in OpenAlex.

  1. Review
  2. Article
  3. Science CommuniCaCells · 2022
    Review
  4. Article
  5. Article
  6. Review
  7. Dairy, soy, and risk of breast cancer: those confounded milks.International journal of epidemiology · 2020
    Article
  8. Dairy Consumption in Adolescence and Early Adulthood and Risk of Breast Cancer.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2018
    Article
  9. Review
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

6 authors at 5 institutions in 2 countries.

Jingmei LiHuman Genetics, Genome Institute of Singapore, Singapore, Singapore.
Woon-Puay Koh
Ai-Zhen Jin
Jian-Min Yuan
Mimi C Yu
Lesley M Butler
UPMC Hillman Cancer Center · USDuke-NUS Medical School · SGGenome Institute of Singapore · SGHealth Promotion Board · SGUniversity of Southern California · US

Funding

Prospective studies of cancer etiology and prevention in Shanghai and SingaporeR01CA144034 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI YUAN, JIAN-MIN · 2010 to 2014
$7.0M
THE SINGAPORE COHORT STUDY OF DIET AND CANCERR01CA080205 · NCI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI YUAN, JIAN-MIN · 1999 to 2009
$5.3M
COHORT STUDY OF DIET AND NASOPHYARYNGEAL CANCERR01CA055069 · NCI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI YU, MIMI C. · 1992 to 1992
–
ENVIRONMENTAL EXPOSURES IN CANCER ETIOLOGYR35CA053890 · NCI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI YU, MIMI C. · 1992 to 1998
–
NCI NIH HHS R01 CA055069NCI NIH HHS R01 CA080205NCI NIH HHS R01 CA144034NCI NIH HHS R01 CA80205NCI NIH HHS R35 CA053890
6 · The paper itself

Abstract

There is experimental evidence that calcium protects against breast cancer development. Prospective epidemiologic studies supporting a protective effect of calcium on breast cancer risk have mainly been limited to Western populations. We examined the association between calcium intake and breast cancer risk in the Singapore Chinese Health Study, a large population-based prospective cohort. Calcium intake and supplement use was assessed by in-person interviewer using a validated food frequency questionnaire. After a mean follow-up of 14.2±3.5 years, 823 cohort participants developed invasive breast cancer. Multivariate proportional hazards regression models were fitted to examine the associations between calcium intake and breast cancer risk. Vegetables were the primary food source of calcium in this study population, followed by dairy products, grains and soy foods. Calcium intake was not associated with breast cancer risk, comparing highest quartile (>345.6 mg/1,000 kcal/day) to lowest quartile (<204.5 mg/1,000 kcal/day) of intake. There was no evidence of effect modification by menopausal status, body mass index, dietary vitamin D or stage of disease at diagnosis. Our findings do not support a hypothesis for calcium in breast cancer chemoprevention, contrary to findings from previous studies among Western populations with higher calcium intake primarily from dairy products and supplements.

Indexed as

Breast NeoplasmsCalcium, DietaryChinaDairy ProductsDietDietary SupplementsEatingEdible GrainFemaleHumansMiddle AgedMultivariate AnalysisNeoplasm InvasivenessProportional Hazards ModelsRisk FactorsSingaporeCalcium, DietaryVitamin D

Identifiers

PMID23319293
PMCPMC3727233
OpenAlexW1548123237

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.