Evidence map›Paper›PMID 31104362›Full record

SynthesisCancer medicine2019

Increased risk of pelvic fracture after radiotherapy in rectal cancer survivors: A propensity matched study.

Yu-Mei Kang, Tze-Fan Chao, Ti-Hao Wang, Yu-Wen Hu

Abstract readMeta-Analysis
In one paragraph

Synthesis in Cancer medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

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

18 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Patient-reported outcomes after treatment for rectal cancer-A prospective nationwide study.Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland · 2024
    Article
  11. Review
  12. Review
  13. Article
  14. Relative Effects of Radiation-Induced Changes in Bone Mass, Structure, and Tissue Material on Vertebral Strength in a Rat Model.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2023
    Article
  15. Article
  16. Article
  17. Article
  18. 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

4 authors.

Yu-Mei KangDivision of Radiation Oncology, Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan.ORCID 0000-0001-8833-7457
Tze-Fan ChaoDivision of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.
Ti-Hao WangDepartment of Radiation Oncology, China Medical University Hospital, Taipei, Taiwan.
Yu-Wen HuDivision of Radiation Oncology, Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To determine whether radiotherapy (RT) can increase pelvic fracture risk in rectal cancer survivors. Rectal cancer patients who underwent curative surgery between 1996 and 2011 in Taiwan were retrospectively studied using the National Health Insurance Research Database (NHIRD) of Taiwan. ICD-9 Codes 808, 805.4-805.7, 806.4-806.7, and 820 (including pelvic, sacrum, lumbar, and femoral neck fracture) were defined as pelvic fracture. Propensity scores for RT, age, and sex were used to perform one-to-one matches between the RT and non-RT group. Risks of pelvic and arm fractures were compared by multivariable Cox regression. Of the 32 689 patients, 7807 (23.9%) received RT, and 1616 suffered from a pelvic fracture (incidence rate: 1.17/100 person-years). The median time to pelvic fracture was 2.47 years. After matching, 6952 patients each in the RT and non-RT groups were analyzed. RT was associated with an increased risk of pelvic fractures in the multivariable Cox model (hazard ratio (HR): 1.246, 95% confidence interval (CI): 1.037-1.495, P = 0.019) but not with arm fractures (HR: 1.013, 95% CI: 0.814-1.259, P = 0.911). Subgroup analyses revealed that RT was associated with a higher pelvic fracture rate in women (HR: 1.431, 95% CI: 1.117-1.834) but not in men, and the interaction between sex and RT was significant (P = 0.03). The HR of pelvic fracture increased 2-4 years after RT (HR: 1.707, 95% CI: 1.150-2.534, P = 0.008). An increased risk of pelvic fracture is noted in rectal cancer survivors, especially women, who receive RT.

Indexed as

Arm BonesFemaleFractures, BoneHumansIncidenceMalePelvic BonesPropensity ScoreProportional Hazards ModelsRadiotherapyRectal NeoplasmsRisk Assessmentpelvic fracturepelvic insufficiency fractureradiotherapyrectal cancer

Identifiers

PMID31104362
PMCPMC6639197

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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.