Evidence map›Paper›PMID 20398365›Full record

ArticleArthritis research & therapy2010

Cancer risks of dermatomyositis and polymyositis: a nationwide cohort study in Taiwan.

Yi-Ju Chen, Chun-Ying Wu, Yu-Lin Huang, Chang-Bi Wang, Jui-Lung Shen, Yun-Ting Chang

Open access · goldAbstract read
In one paragraph

Article in Arthritis research & therapy, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 101 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
101citing papers in PubMed, 3 pooled it
6.8field-weighted citation impact, top 3% 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

101 citing papers in PubMed, 3 syntheses or guidelines pooled it, 217 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Guideline
  4. Article
  5. Review
  6. Review
  7. Autoantibodies as biomarkers of cancer risk in dermatomyositis.JID innovations : skin science from molecules to population health · 2026
    Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Malignancy in Idiopathic Inflammatory Myopathies: Recent Insights.Clinical reviews in allergy & immunology · 2025
    Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Cancer in connective tissue disease.Frontiers in immunology · 2025
    Review
  19. Article
  20. Review

41 more citing papers are in PubMed but not listed here.

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 2 institutions in 1 country.

Yi-Ju ChenDepartment of Dermatology, National Yang-Ming University, No, 155, Sec, 2, Linong Street, Taipei 112, Taiwan.
Chun-Ying Wu
Yu-Lin Huang
Chang-Bi Wang
Jui-Lung Shen
Yun-Ting Chang
National Yang Ming University Hospital · TWTaichung Veterans General Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe association of idiopathic inflammatory myositis (IIM) and malignancies has been reported, but rarely in Asian countries. Our aim was to investigate the risk of cancer among IIM patients without a prior history of malignancies, in Taiwan.

methodsWe conducted a nationwide cohort study of 1,012 patients with dermatomyositis (DM) and 643 patients with polymyositis (PM), but without prior history of malignancies, utilizing the National Health Insurance Database from 1997 to 2007. Standardized incidence ratios (SIRs) of cancers were analyzed.

resultsA total of 95 cancers (9.4%) in DM and 33 cancers (4.4%) in PM were identified. Overall cancer risk was significantly elevated in DM patients (SIR = 5.11, 95% confidence interval [CI] = 5.01 to 5.22) and PM patients (SIR = 2.15, 95% CI = 2.08 to 2.22). Most cancers were detected in the first year of observation. The risk of cancer decreased with observation time, yet remained elevated compared with the general population in both study groups after 5 years of follow-up. DM was associated with sustained elevated risk of cancers in every age group, whereas the risk of cancer in PM was highest in younger patients and decreased with age. DM patients were at the greatest risk of cancers of the nasopharynx, lungs and hematopoietic malignancies.

conclusionsPatients with IIM are at increased risk for cancer and should receive age-appropriate and gender-appropriate malignancy evaluations, with additional assessment for nasopharyngeal, lung and hematologic malignancy following diagnosis, and with continued vigilance for development of cancers in follow-up.

Indexed as

AdultAgedAged, 80 and overCohort StudiesComorbidityDatabases, FactualDermatomyositisFemaleHumansMaleMiddle AgedNeoplasmsPolymyositisTaiwanYoung Adult

Identifiers

PMID20398365
PMCPMC2888225
OpenAlexW2164554065

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LicenceCC BY
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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.