Evidence map›Paper›PMID 25781632›Full record

ArticlePloS one2015

Risk of cancer in patients with iron deficiency anemia: a nationwide population-based study.

Ning Hung, Cheng-Che Shen, Yu-Wen Hu, Li-Yu Hu, Chiu-Mei Yeh, Chung-Jen Teng, Ai-Seon Kuan, San-Chi Chen, Tzeng-Ji Chen, Chia-Jen Liu

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 10% 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

40 citing papers in PubMed, 1 synthesis or guideline pooled it, 80 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Anaemia, ethnicity, and cancer incidence: a retrospective cohort study in primary care.The British journal of general practice : the journal of the Royal College of General Practitioners · 2025
    Article
  8. Observational
  9. Article
  10. Article
  11. Article
  12. Article
  13. Iron and Cancer.Advances in experimental medicine and biology · 2025
    Review
  14. Review
  15. Article
  16. Iron metabolism in colorectal cancer: a balancing act.Cellular oncology (Dordrecht, Netherlands) · 2023
    Review
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 1 country.

Ning HungDepartment of Psychiatry, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
Cheng-Che ShenSchool of Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Psychiatry, Chiayi Branch, Taichung Veterans General Hospital, Chiayi, Taiwan.
Yu-Wen HuDepartment of Psychiatry, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan; Department of information magagement, National Chung-Cheng University, Chiayi, Taiwan; Cancer Center, Taipei Veterans General Hospital, Taipei, Taiwan.
Li-Yu HuInstitute of Public Health, National Yang-Ming University, Taipei, Taiwan.
Chiu-Mei YehDepartment of Family Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.
Chung-Jen TengDepartment of Psychiatry, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan; Cancer Center, Taipei Veterans General Hospital, Taipei, Taiwan; Division of Oncology and Hematology, Department of Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan.
Ai-Seon KuanDepartment of Psychiatry, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
San-Chi ChenDivision of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.
Tzeng-Ji ChenCancer Center, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Family Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.
Chia-Jen LiuDepartment of Psychiatry, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan; Cancer Center, Taipei Veterans General Hospital, Taipei, Taiwan; Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.
Kaohsiung Veterans General Hospital · TWTaipei Veterans General Hospital · TWNational Yang Ming Chiao Tung University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study evaluated the risk of cancer among patients with iron deficiency anemia (IDA) by using a nationwide population-based data set.

methodPatients newly diagnosed with IDA and without antecedent cancer between 2000 and 2010 were recruited from the Taiwan National Health Insurance Research Database. The standardized incidence ratios (SIRs) of cancer types among patients with IDA were calculated.

resultsPatients with IDA exhibited an increased overall cancer risk (SIR: 2.15). Subgroup analysis showed that patients of both sexes and in all age groups had an increased SIR. After we excluded patients diagnosed with cancer within the first and first 5 years of IDA diagnosis, the SIRs remained significantly elevated at 1.43 and 1.30, respectively. In addition, the risks of pancreatic (SIR: 2.31), kidney (SIR: 2.23), liver (SIR: 1.94), and bladder cancers (SIR: 1.74) remained significantly increased after exclusion of patients diagnosed with cancer within 5 years after IDA diagnosis.

conclusionThe overall cancer risk was significantly elevated among patients with IDA. After we excluded patients diagnosed with IDA and cancer within 1 and 5 years, the SIRs remained significantly elevated compared with those of the general population. The increased risk of cancer was not confined to gastrointestinal cancer when the SIRs of pancreatic, kidney, liver, and bladder cancers significantly increased after exclusion of patients diagnosed with IDA and cancer within the first 5 years. This finding may be caused by immune activities altered by IDA. Further study is necessary to determine the association between IDA and cancer risk.

Indexed as

AdultAgedAnemia, Iron-DeficiencyFollow-Up StudiesHumansMiddle AgedNeoplasmsRetrospective StudiesRisk FactorsTaiwanTime Factors

Identifiers

PMID25781632
PMCPMC4363660
OpenAlexW1983930998

What OpenQuestion holds

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LicenceCC BY
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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.