Evidence mapPaperPMID 27770555Full record

ArticleInternational journal of cancer2017

Prospective study of Type 2 diabetes mellitus, anti-diabetic drugs and risk of prostate cancer.

Christel Häggström, Mieke Van Hemelrijck, Björn Zethelius, David Robinson, Birgitta Grundmark, Lars Holmberg, Soffia Gudbjörnsdottir, Hans Garmo, Pär Stattin

Open access · hybridFull text read
In one paragraph

Article in International journal of cancer, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 4 pooled it
5.0field-weighted citation impact, top 4% 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

27 citing papers in PubMed, 4 syntheses or guidelines pooled it, 69 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Review
  6. Review
  7. Metformin: A Dual-Role Player in Cancer Treatment and Prevention.International journal of molecular sciences · 2024
    Review
  8. Article
  9. Article
  10. Targeting lipid metabolism in metastatic prostate cancer.Therapeutic advances in medical oncology · 2023
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
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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

9 authors at 6 institutions in 2 countries.

Christel HäggströmDepartment of Surgical and Perioperative Sciences, Urology and Andrology, Umeå University, Umeå, Sweden.
Mieke Van HemelrijckDivision of Cancer Studies, King's College London, Faculty of Life Sciences and Medicine, London, United Kingdom.
Björn ZetheliusDepartment of Public Health and Caring Sciences/Geriatrics, Uppsala University, Uppsala, Sweden.
David RobinsonDepartment of Surgical and Perioperative Sciences, Urology and Andrology, Umeå University, Umeå, Sweden.
Birgitta GrundmarkDepartment of Scientific Support, Medical Products Agency, Uppsala, Sweden.
Lars HolmbergDivision of Cancer Studies, King's College London, Faculty of Life Sciences and Medicine, London, United Kingdom.
Soffia GudbjörnsdottirDepartment of Medicine, Sahlgrenska University Hospital, Gothenburg University, Göteborg, Sweden.
Hans GarmoDivision of Cancer Studies, King's College London, Faculty of Life Sciences and Medicine, London, United Kingdom.
Pär StattinDepartment of Surgical and Perioperative Sciences, Urology and Andrology, Umeå University, Umeå, Sweden.
Uppsala University · SEKing's College London · GBMedical Products Agency · SERegional Research Council in Uppsala-Örebro Region · SESahlgrenska University Hospital · SEUmeå University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Type 2 diabetes mellitus (T2DM) has consistently been associated with decreased risk of prostate cancer; however, if this decrease is related to the use of anti-diabetic drugs is unknown. We prospectively studied men in the comparison cohort in the Prostate Cancer data Base Sweden 3.0, with data on T2DM, use of metformin, sulfonylurea and insulin retrieved from national health care registers and demographic databases. Cox proportional hazards regression models were used to compute hazard ratios (HR) and 95% confidence intervals (CI) of prostate cancer, adjusted for confounders. The study consisted of 612,846 men, mean age 72 years (standard deviation; SD = 9 years), out of whom 25,882 men were diagnosed with prostate cancer during follow up, mean time of 5 years (SD = 3 years). Men with more than 1 year's duration of T2DM had a decreased risk of prostate cancer compared to men without T2DM (HR = 0.85, 95% CI = 0.82-0.88) but among men with T2DM, those on metformin had no decrease (HR = 0.96, 95% CI = 0.77-1.19), whereas men on insulin (89%) or sulfonylurea (11%) had a decreased risk (HR = 0.73, 95% CI = 0.55-0.98), compared to men with T2DM not on anti-diabetic drugs. Men with less than 1 year's duration of T2DM had no decrease in prostate cancer risk (HR = 1.11, 95% CI = 0.95-1.31). Our results gave no support to the hypothesis that metformin protects against prostate cancer as recently proposed. However, our data gave some support to an inverse association between T2DM severity and prostate cancer risk.

Indexed as

AgedAged, 80 and overDiabetes Mellitus, Type 2HumansHypoglycemic AgentsInsulinMaleMetforminProportional Hazards ModelsProspective StudiesProstatic NeoplasmsRisk FactorsSulfonylurea CompoundsSwedenHypoglycemic AgentsInsulinMetforminSulfonylurea Compoundscohort studymetforminprostate cancersurvival analysisType 2 diabetes mellitus

Identifiers

PMID27770555
PMCPMC5215657
OpenAlexW2532746106

What Socratic holds

Textfull text, public
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 Socratic graph.