Evidence map›Paper›PMID 33187507›Full record

ArticleBMC cancer2020

Prognostic factors and survival according to tumour subtype in women presenting with breast cancer bone metastases at initial diagnosis: a SEER-based study.

Xiao Li, Xiaoli Zhang, Jie Liu, Yinzhong Shen

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.5field-weighted citation impact, top 15% 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

23 citing papers in PubMed, 29 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Five-year overall and specific survival of breast cancer in great Cuiaba (MT), Brazil.Revista brasileira de epidemiologia = Brazilian journal of epidemiology · 2025
    Article
  9. Article
  10. Article
  11. Molecular subtypes as a prognostic breast cancer factor in women users of the São Paulo public health system, Brazil.Revista brasileira de epidemiologia = Brazilian journal of epidemiology · 2023
    Article
  12. HRDrugs in context · 2023
    Review
  13. Article
  14. Article
  15. Observational
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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 at 2 institutions in 1 country.

Xiao LiDepartment of Medical Affairs, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China.
Xiaoli ZhangDepartment of Health Statistics, School of Public Health, China Medical University, Shenyang, China.
Jie LiuDepartment of Health Statistics, School of Public Health, China Medical University, Shenyang, China.
Yinzhong ShenDepartment of Medical Affairs, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China. shenyinzhong@shphc.org.cn.
China Medical University · CNShanghai Public Health Clinical Center · CN

Funding

Fudan University under Grant RC-QT-2019-01Ministry of Science and Technology of the People's Republic of China under Grant : National Key Project of '13th five-year' Infectious Diseases Program 2017ZX10202101Shanghai Municipal Key Clinical Specialty shslczdzk01102
6 · The paper itself

Abstract

backgroundTumour subtype has a significant effect on bone metastasis in breast cancer, but population-based estimates of the prognosis of patients with bone metastases at breast cancer diagnosis are lacking. The aim of this study was to analyse the influence of tumour subtype and other factors on the prognosis and survival of patients with bone metastases of breast cancer.

methodsUsing the Surveillance, Epidemiology, and End Results (SEER) Program data from 2012 to 2016, a retrospective cohort study was conducted to investigate stage IV breast cancer patients with bone metastases. Stage IV patient characteristics according to subtype were compared using chi-square tests. Overall survival (OS) and prognostic factors were compared using the Kaplan-Meier method and the Cox proportional hazards model, respectively.

resultsA total of 3384 stage IV patients were included in this study; 63.42% were HR+/HER2-, 19.86% were HR+/HER2+, 9.34% were HR-/HER2-, and 7.39% were HR-/HER2+. The median OS for the whole population was 38 months, and 33.9% of the patients were alive at 5 years. The median OS and five-year survival rate were significantly different among stage IV breast cancer patients with different molecular subtypes (p < 0.05). Multivariate Cox regression analysis showed that age of 55-59 (HR = 1.270), black race (HR = 1.317), grade III or IV (HR = 1.960), HR-/HER2- (HR = 2.808), lung metastases (HR = 1.378), liver metastases (HR = 2.085), and brain metastases (HR = 1.903) were independent risk factors for prognosis; married status (HR = 0.819), HR+/HER2+ (HR = 0.631), HR-/HER2+ (HR = 0.716), insurance (HR = 0.587) and surgery (HR = 0.504) were independent protection factors of prognosis. There was an interaction between the HR+/HER2+ subtype and other metastases (except bone metastases, HR = 0.694, 95% CI: 0.485-0.992), but the interaction between race and subtype did not reach significance for prognosis.

conclusionsThere were substantial differences in OS according to tumour subtype. In addition to tumour subtype, other independent predictors of OS were age at diagnosis, race, marital status, insurance, grade, surgery and visceral metastases. There was an interaction between the HR+/HER2+ subtype and other metastases (except bone metastases) for prognosis. Tumour subtype, as a significant prognostic factor, warrants further investigation.

Indexed as

SEER ProgramAdultBiomarkers, TumorBone NeoplasmsBreast NeoplasmsCarcinoma, Ductal, BreastCarcinoma, LobularErb-b2 Receptor Tyrosine KinasesFemaleFollow-Up StudiesHumansMiddle AgedNeoplasm MetastasisPrognosisReceptors, EstrogenReceptors, ProgesteroneBiomarkers, TumorERBB2 protein, humanErb-b2 Receptor Tyrosine KinasesReceptors, EstrogenReceptors, ProgesteroneBone metastasesBreast cancerPrognostic factorSurvivalTumour subtype

Identifiers

PMID33187507
PMCPMC7666499
OpenAlexW3103671838

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.