Evidence map›Paper›PMID 21614572›Full record

ArticleDiabetologia2011

Long-term effects of insulin glargine on the risk of breast cancer.

S Suissa, L Azoulay, S Dell'Aniello, M Evans, J Vora, M Pollak

Open access · bronzeAbstract readComparative Study
PubMed Publisher
In one paragraph

Article in Diabetologia, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 5 pooled it
7.6field-weighted citation impact, top 2% 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

49 citing papers in PubMed, 5 syntheses or guidelines pooled it, 98 citations in OpenAlex.

  1. Pooled it
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  6. Article
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  11. A Cohort Study of Metformin and Colorectal Cancer Risk among Patients with Diabetes Mellitus.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2018
    Article
  12. Article
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  16. Insulin, insulin receptors, and cancer.Journal of endocrinological investigation · 2016
    Review
  17. Article
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  19. Article
  20. Clinical pathological characteristics of breast cancer patients with secondary diabetes after systemic therapy: a retrospective multicenter study.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2015
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 2 countries.

S SuissaCenter for Clinical Epidemiology, Lady Davis Research Institute, Jewish General Hospital, 3755 Cote Ste-Catherine, Montreal, QC, Canada H3T 1E2. samy.suissa@mcgill.ca
L Azoulay
S Dell'Aniello
M Evans
J Vora
M Pollak
Jewish General Hospital · CAMcGill University · CARoyal Liverpool University Hospital · GBUniversity Hospital Llandough · GB

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

aims/hypothesisThere have been growing concerns regarding the long-term effects of insulin glargine (A21Gly,B31Arg,B32Arg human insulin) on the risk of breast cancer.

methodsWe used the UK's General Practice Research Database (GPRD) to identify a cohort of women aged 40 years or over with type 2 diabetes, treated with insulin during 2002-2006 and followed until the first breast cancer diagnosis or 31 December 2009. After the users of insulin glargine had been matched with users of other insulins on age, calendar time and duration of prior insulin use, the HR of breast cancer associated with insulin glargine use was estimated using a Cox proportional hazards model, adjusted for known risk factors for breast cancer.

resultsThe cohort comprised 15,227 women, including 4,579 glargine users and 10,648 users of other insulins, of which 246 developed breast cancer during up to 8 years follow-up (incidence rate 4.1 per 1,000 per year). Insulin glargine use was not associated with an increased risk of breast cancer during the first 5 years of use (HR 0.9; 95% CI 0.7-1.3). The risk tended to increase after 5 years (HR 1.8; 95% CI 0.8-4.0), and significantly so for the women who had been on insulin before starting glargine (HR 2.7; 95% CI 1.1-6.5). CONCLUSIONS/

interpretationThe risk of breast cancer in women with type 2 diabetes is not increased during the first 5 years of insulin glargine use. However, longer-term use may increase this risk, particularly in women with longstanding use of insulin before starting insulin glargine.

Indexed as

AgedBreast NeoplasmsCohort StudiesDiabetes Mellitus, Type 2Dose-Response Relationship, DrugFemaleFollow-Up StudiesHumansHypoglycemic AgentsIncidenceInsulin GlargineInsulin, Long-ActingMiddle AgedProportional Hazards ModelsRetrospective StudiesRisk FactorsHypoglycemic AgentsInsulin GlargineInsulin, Long-Acting

Identifiers

PMID21614572
OpenAlexW2082367592

What OpenQuestion holds

Textmetadata
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.