Evidence map›Paper›PMID 33618790›Full record

ArticlePublic health nutrition2021

Iron intake with the risk of breast cancer among Chinese women: a case-control study.

Kai-Yan Liu, Xiao-Li Feng, Xiong-Fei Mo, Fang-Yu Lin, Xin Zhang, Chu-Yi Huang, Alinuer Abulimiti, Lei Li, Cai-Xia Zhang

Open access · bronzeAbstract read
In one paragraph

Article in Public health nutrition, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.6field-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

6 citing papers in PubMed, 9 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Micronutrient Status and Breast Cancer: A Narrative Review.International journal of molecular sciences · 2024
    Review
  5. Article
  6. Article
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

9 authors at 2 institutions in 1 country.

Kai-Yan LiuDepartment of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou510080, People's Republic of China.
Xiao-Li FengDepartment of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou510080, People's Republic of China.
Xiong-Fei MoDepartment of Thyroid and Breast Surgery, Sun Yat-sen University First Affiliated Hospital, Guangzhou510080, People's Republic of China.
Fang-Yu LinNursing Department, Sun Yat-sen University First Affiliated Hospital, Guangzhou510080, People's Republic of China.
Xin ZhangDepartment of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou510080, People's Republic of China.
Chu-Yi HuangDepartment of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou510080, People's Republic of China.
Alinuer AbulimitiDepartment of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou510080, People's Republic of China.
Lei LiDepartment of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou510080, People's Republic of China.
Cai-Xia ZhangDepartment of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou510080, People's Republic of China.
Sun Yat-sen University · CNThe First Affiliated Hospital, Sun Yat-sen University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe current study evaluated the associations between different forms and sources of Fe and breast cancer risk in Southern Chinese women.

designCase-control study. We collected data on the consumption of Fe from different forms and food sources by using a validated FFQ. Multivariable logistic regression and restricted cubic spline (RCS) analysis was used to reveal potential associations between Fe intake and breast cancer risk.

settingA case-control study of women at three major hospitals in Guangzhou, China.

participantsFrom June 2007 to March 2019, 1591 breast cancer cases and 1622 age-matched controls were recruited.

resultsIn quartile analyses, Fe from plants and Fe from white meat intake were inversely associated with breast cancer risk, with OR of 0·65 (95 % CI 0·47, 0·89, Ptrend = 0·006) and 0·76 (95 % CI 0·61, 0·96, Ptrend = 0·014), respectively, comparing the highest with the lowest quartile. No associations were observed between total dietary Fe, heme or non-heme Fe, Fe from meat or red meat and breast cancer risk. RCS analysis demonstrated J-shaped associations between total dietary Fe, non-heme Fe and breast cancer, and reverse L-shaped associations between heme Fe, Fe from meat and Fe from red meat and breast cancer.

conclusionFe from plants and white meat were inversely associated with breast cancer risk. Significant non-linear J-shaped associations were found between total dietary Fe, non-heme Fe and breast cancer risk, and reverse L-shaped associations were found between heme Fe, Fe from meat or red meat and breast cancer risk.

Indexed as

Breast NeoplasmsCase-Control StudiesFemaleHumansIronIron, DietaryLogistic ModelsMeatRisk FactorsIronIron, DietaryBreast cancerHeme ironIronIron from plantsNon-heme iron

Identifiers

PMID33618790
PMCPMC10195629
OpenAlexW3133114133

What OpenQuestion holds

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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.