Evidence map›Paper›PMID 25956271›Full record

ArticleCancer causes & control : CCC2015

Associations between diabetes medication use and risk of second breast cancer events and mortality.

Gregory S Calip, Onchee Yu, Kent F Hoskins, Denise M Boudreau

Abstract read
In one paragraph

Article in Cancer causes & control : CCC, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
1.7field-weighted citation impact, top 17% 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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 37 citations in OpenAlex.

  1. Pooled it
  2. The effect of metformin on biomarkers associated with breast cancer outcomes: a systematic review, meta-analysis, and dose-response of randomized clinical trials.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2020 · on this map
    Pooled it
  3. Article
  4. Article
  5. Does diabetes affect breast cancer survival?Cancer reports (Hoboken, N.J.) · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Postdiagnostic Dietary Glycemic Index, Glycemic Load, Dietary Insulin Index, and Insulin Load and Breast Cancer Survival.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2021
    Article
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  12. Article
  13. Cancer Survivorship in Primary Care.Korean journal of family medicine · 2019
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  14. Review
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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 3 institutions in 1 country.

Gregory S CalipCenter for Pharmacoepidemiology and Pharmacoeconomic Research, University of Illinois at Chicago, 833 South Wood Street M/C 871, Chicago, IL, 60612, USA, gcalip@uic.edu.
Onchee Yu
Kent F Hoskins
Denise M Boudreau
University of Illinois Chicago · USKaiser Permanente Washington Health Research Institute · USSeattle Pacific University · US

Funding

Cancer Prevention Trng-Nutrition, Exercise &GeneticsR25CA094880 · NCI · UNIVERSITY OF WASHINGTON · PI WHITE, EMILY · 2002 to 2016
$7.3M
Commonly Used Medications and Breast Cancer RecurrenceR01CA120562 · NCI · KAISER FOUNDATION HEALTH PLAN OF WASHINGTON · PI BOUDREAU, DENISE M · 2007 to 2011
$2.1M
SURVEILLANCE EPIDEMIOLOGY &END RESULTS PROGRAMN01CN067009 · CN · FRED HUTCHINSON CANCER RESEARCH CENTER · PI THOMAS, DAVID B · 1996 to 1997
–
NCI NIH HHS N01 CN067009NCI NIH HHS N01 PC035142NCI NIH HHS N01-PC-35142NCI NIH HHS R01 CA120562NCI NIH HHS R25 CA094880NCI NIH HHS R25CA094880
6 · The paper itself

Abstract

purposeDiabetes and certain diabetes medications have been shown to influence breast cancer (BC) risk. Less is known about their relation to BC outcomes. Our objective was to evaluate the effects of diabetes and diabetes medications on risk of second breast cancer events (SBCE) and mortality.

methodsThis population-based cohort study was conducted among women diagnosed with early-stage (I-II) BC and enrolled in an integrated health plan. Exposures of interest were diabetes and medication classes including insulin, metformin, and sulfonylureas. Outcomes of interest were SBCE defined as recurrence or second primary BC, BC-specific mortality, and all-cause mortality. We used multivariable Cox proportional hazards models to estimate hazard ratios (HR) and 95 % confidence intervals (CI) for diabetes and medication use while accounting for potential confounders and competing risks.

resultsAmong 4,216 women, 13 % developed SBCE during a median follow-up of 6.3 years. 610 women had diabetes of which 76 % used oral diabetes medication and/or insulin. Findings suggested that diabetes increased the risk of recurrence (HR = 1.57; 95 % CI 1.09-2.25) but not overall SBCE (HR = 1.29; 95 % CI 0.94-1.76) or second primary BC (HR = 0.74; 95 % CI 0.39-1.41). Among women with diabetes, insulin use was associated with increased risks of recurrence (HR = 1.94; 95 % CI 1.08-3.48) and all-cause mortality (HR = 2.33; 95 % CI 1.70-3.20). Metformin use was associated with lower all-cause mortality (HR = 0.55; 95 % CI 0.38-0.79).

conclusionsOur findings show an association between diabetes and increased recurrence risk, and risk may be greater among insulin users. Metformin may reduce all-cause mortality among BC survivors. Given the growing breast cancer survivor population, further research in larger, more diverse populations is warranted.

Indexed as

AdolescentAdultAgedAged, 80 and overBreast NeoplasmsCohort StudiesDiabetes MellitusFemaleHumansHypoglycemic AgentsInsulinMetforminMiddle AgedNeoplasm Recurrence, LocalNeoplasms, Second PrimaryProportional Hazards ModelsHypoglycemic AgentsInsulinMetforminSulfonylurea Compounds

Identifiers

PMID25956271
PMCPMC4501774
OpenAlexW310163588

What OpenQuestion holds

Texttitle and abstract
LicenceTDM
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.