Evidence mapPaperPMID 39190051Full record

ArticleEndocrine2025

The impact of metformin on mortality in patients with type 2 diabetes mellitus: a prospective cohort study.

Bocheng Zhang, Ying Cao, Zhenan Qu, Yulan Sun, Xiaoyuan Tian

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Article in Endocrine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
field-weighted citation impact
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

8 citing papers in PubMed.

  1. Article
  2. Article
  3. Observational
  4. Review
  5. Review
  6. 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

5 authors.

Bocheng Zhang *Second Affiliated Hospital, Dalian Medical University, Dalian, China.
Ying Cao *Second Affiliated Hospital, Dalian Medical University, Dalian, China.
Zhenan QuAffiliated Zhongshan Hospital, Dalian University, Dalian, Liaoning, China.
Yulan SunAnshan Central Hospital, Anshan, Liaoning, China.
Xiaoyuan TianSecond Affiliated Hospital, Dalian Medical University, Dalian, China. tianxiaoyuany@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMetformin, a widely used antihyperglycemic drug, has shown efficacy in treating type 2 diabetes mellitus (T2DM) and is associated with potential benefits beyond glycemic control. This study investigates the impact of metformin on mortality in T2DM patients using a prospective cohort design utilizing data from the National Health and Nutrition Examination Survey (NHANES).

methodsIn NHANES 1999-2014, a total of 5813 representative participants aged 20 and above with T2DM were included in the analysis. We utilized Kaplan-Meier survival curves and multivariate Cox regression analysis to investigate the impact of metformin on both all-cause mortality and cause-specific mortality among patients with T2DM.

resultsKaplan-Meier analysis showed a significant reduction in all-cause and cause-specific mortality in metformin users compared to non-users (p < 0.05). Multivariate Cox regression confirmed these findings, indicating that metformin use was associated with a 18% reduction in all-cause mortality (HR = 0.82, 95% CI = 0.73-0.92, p < 0.001) and 25% reduction in cardiovascular mortality (HR = 0.75, 95% CI = 0.60-0.94, p = 0.01).

conclusionOur results suggest that metformin significantly reduces all-cause and cardiovascular mortality in T2DM patients, highlighting its potential benefits beyond glycemic control. These results contribute to the existing literature by providing robust evidence from a large prospective cohort study. However, further research is needed to validate these findings and elucidate the underlying mechanisms controlling the effects of metformin on mortality outcomes in individuals with T2DM.

Indexed as

Diabetes Mellitus, Type 2Hypoglycemic AgentsMetforminAdultAgedCardiovascular DiseasesFemaleHumansKaplan-Meier EstimateMaleMiddle AgedNutrition SurveysProspective StudiesHypoglycemic AgentsMetforminMetforminMortalityNHANESType 2 diabetes mellitus

Identifiers

PMID39190051

What Socratic holds

Texttitle and abstract
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.