Evidence map›Paper›PMID 28077783›Full record

ArticleOncotarget2017

Association between metformin use and mortality in patients with type 2 diabetes mellitus and localized resectable pancreatic cancer: a nationwide population-based study in korea.

Won Il Jang, Mi-Sook Kim, Shin Hee Kang, Ae Jung Jo, Yun Jung Kim, Ha Jin Tchoe, Chan Mi Park, Hyo Jeong Kim, Jin A Choi, Hyung Jin Choi and 8 more

Open access · diamondFull text read
In one paragraph

Article in Oncotarget, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 2 pooled it
3.3field-weighted citation impact, top 6% 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

30 citing papers in PubMed, 2 syntheses or guidelines pooled it, 40 citations in OpenAlex.

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  13. Cohort Study of Antihyperglycemic Medication and Pancreatic Cancer Patients Survival.International journal of environmental research and public health · 2020
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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

18 authors at 3 institutions in 1 country.

Won Il JangDepartment of Radiation Oncology, Korea Institute of Radiological and Medical Sciences, Seoul 01812, Republic of Korea.
Mi-Sook KimDepartment of Radiation Oncology, Korea Institute of Radiological and Medical Sciences, Seoul 01812, Republic of Korea.
Shin Hee KangDivision for Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul 04554, Republic of Korea.
Ae Jung JoDivision for Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul 04554, Republic of Korea.
Yun Jung KimDivision for Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul 04554, Republic of Korea.
Ha Jin TchoeDivision for Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul 04554, Republic of Korea.
Chan Mi ParkDivision for Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul 04554, Republic of Korea.
Hyo Jeong KimDivision for Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul 04554, Republic of Korea.
Jin A ChoiDivision for Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul 04554, Republic of Korea.
Hyung Jin ChoiDepartment of Anatomy, Seoul National University College of Medicine, Seoul 03080, Republic of Korea.
Eun-Kyung PaikDepartment of Radiation Oncology, Korea Institute of Radiological and Medical Sciences, Seoul 01812, Republic of Korea.
Young Seok SeoDepartment of Radiation Oncology, Korea Institute of Radiological and Medical Sciences, Seoul 01812, Republic of Korea.
Hyung Jun YooDepartment of Radiation Oncology, Korea Institute of Radiological and Medical Sciences, Seoul 01812, Republic of Korea.
Jin-Kyu KangDepartment of Radiation Oncology, Korea Institute of Radiological and Medical Sciences, Seoul 01812, Republic of Korea.
Chul Ju HanDepartment of Internal Medicine, Korea Institute of Radiological and Medical Sciences, Seoul 01812, Republic of Korea.
Yeon Ju KimDepartment of Internal Medicine, Korea Institute of Radiological and Medical Sciences, Seoul 01812, Republic of Korea.
Sang Beom KimDepartment of Surgery, Korea Institute of Radiological and Medical Sciences, Seoul 01812, Republic of Korea.
Min Jung KoDivision for Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul 04554, Republic of Korea.
Korea Institute of Radiological and Medical Sciences · KRNational Evidenc- based healthcare Collaborating Agency · KRSeoul National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPreclinical studies support an antitumor effect of metformin. However, clinical studies have conflicting results and metformin's effect remains controversial. The aim of this study was to evaluate metformin's effect on clinical outcomes in diabetic patients with pancreatic cancer treated with curative resection.

resultsA total of 764 patients underwent curative resection, met none of the exclusion criteria, and were prescribed oral hypoglycemic agents. The cancer-specific survival (5-year, 31.9% vs. 22.2%, p < 0.001) was significantly higher in the 530 metformin users than in the 234 diabetic metformin non-users. After multivariable adjustments, metformin users had significantly lower cancer-specific mortality as compared with metformin non-users (hazard ratio, 0.727; 95% confidence interval, 0.611-0.868). Cubic spline regression analysis demonstrated significantly decreased cancer-specific mortality with increasing dose of metformin (p = 0.0047). MATERIALS AND

methodsData were provided from the Korea Central Cancer Registry and the National Health Insurance Service in the Republic of Korea. The study cohort consisted of 28,862 patients newly diagnosed with pancreatic cancer between 2005 and 2011. Metformin exposure was determined from prescription information from 6 months before the first diagnosis of pancreatic cancer to last follow-up. The main outcome was cancer-specific survival.

conclusionsThis large study indicates that metformin might decrease cancer-specific mortality rates in localized resectable pancreatic cancer patients with pre-existing diabetes, independently of other factors, with a dose-response relationship.

Indexed as

AdultAgedDiabetes Mellitus, Type 2Disease-Free SurvivalDose-Response Relationship, DrugFemaleHumansHypoglycemic AgentsKaplan-Meier EstimateMaleMetforminMiddle AgedMultivariate AnalysisPancreatectomyPancreaticoduodenectomyProstatic NeoplasmsHypoglycemic AgentsMetformindiabetesmetforminnationwide databasepancreatic cancerresection

Identifiers

PMID28077783
PMCPMC5354755
OpenAlexW2570411573

What OpenQuestion holds

Textfull text, public
LicenceCC BY
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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.