Evidence map›Paper›PMID 33976288›Full record

ArticleScientific reports2021

Metformin improves the outcomes in Chinese invasive breast cancer patients with type 2 diabetes mellitus.

Tianli Hui, Chao Shang, Liu Yang, Meiqi Wang, Ruoyang Li, Zhenchuan Song

Open access · goldFull text read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 26% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. 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

6 authors at 2 institutions in 1 country.

Tianli Hui *Breast Center, Hebei Medical University Fourth Affiliated Hospital, No. 169 Tianshan Street, Shijiazhuang, 050035, China.
Chao Shang *Breast Center, Hebei Medical University Fourth Affiliated Hospital, No. 169 Tianshan Street, Shijiazhuang, 050035, China.
Liu YangBreast Center, Hebei Medical University Fourth Affiliated Hospital, No. 169 Tianshan Street, Shijiazhuang, 050035, China.
Meiqi WangBreast Center, Hebei Medical University Fourth Affiliated Hospital, No. 169 Tianshan Street, Shijiazhuang, 050035, China.
Ruoyang LiBreast Center, Hebei Medical University Fourth Affiliated Hospital, No. 169 Tianshan Street, Shijiazhuang, 050035, China.
Zhenchuan SongBreast Center, Hebei Medical University Fourth Affiliated Hospital, No. 169 Tianshan Street, Shijiazhuang, 050035, China. songzhch@hotmail.com.
Fourth Hospital of Hebei Medical University · CNHebei Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Early reports indicate that metformin, a clinical drug administered to treat type 2 diabetes mellitus (T2DM), was found to be associated with a better prognosis of cancer. The objective of this study was retrospectively analyzed the effect of metformin on the outcomes of Chinese breast cancer patients with T2DM. A total of 3757 primary invasive breast cancer patients who underwent surgery from January 2010 to December 2013 were enrolled. According to the medication treatment, all the patients were divided as non-diabetes group, metformin group and insulin group. The follow-up data for disease-free survival (DFS) and overall survival (OS) were obtained from 3553 patients (median follow up of 85 months) and estimated with the Kaplan-Meier method followed by a log-rank test. Multivariate Cox proportional hazards regression model was applied. The results showed that there was a significant survival difference among non-diabetes group, metformin group and insulin group, 5-year DFS was 85.8%, 96.1%, 73.0%, and 5-year OS was 87.3%, 97.1%, 73.3% respectively (P < 0.05). Prognostic analysis showed metformin was significantly associated with better DFS and OS. Our results suggested that metformin may have a good effect on the survival of invasive breast cancer patients with T2DM.

Indexed as

Breast NeoplasmsDiabetes Mellitus, Type 2FemaleHumansHypoglycemic AgentsMetforminMiddle AgedRetrospective StudiesHypoglycemic AgentsMetformin

Identifiers

PMID33976288
PMCPMC8113316
OpenAlexW3162613355

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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.