Evidence map›Paper›PMID 23589428›Full record

ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2013

Serum C-peptide levels and risk of death among adults without diabetes mellitus.

Jin-young Min, Kyoung-bok Min

Open access · goldAbstract read
In one paragraph

Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.6field-weighted citation impact, top 15% 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

25 citing papers in PubMed, 49 citations in OpenAlex.

  1. Trial
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  3. C-peptide in Precision Diabetes Care and Beyond: A Comprehensive Review.Clinical medicine insights. Endocrinology and diabetes · 2026
    Review
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  17. Review
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  19. [Correlation between fasting C-peptide and serum uric acid in patients with type 2 diabetes mellitus].Nan fang yi ke da xue xue bao = Journal of Southern Medical University · 2018
    Article
  20. Article
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

2 authors at 1 institution in 1 country.

Jin-young MinDepartment of Epidemiology, Institute of Health and Environment, Seoul National University, Seoul, Republic of Korea.
Kyoung-bok Min
Seoul National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundConnecting peptide (C-peptide) plays a role in early atherogenesis in patients with diabetes mellitus and may be a marker for cardiovascular morbidity and mortality in patients without diabetes. We investigated whether serum C-peptide levels are associated with all-cause, cardiovascular-related and coronary artery disease-related mortality in adults without diabetes.

methodsWe used data from the Third Nutrition and Health Examination Survey (NHANES III) and the NHANES III Linked Mortality File in the United States. We analyzed mortality data for 5902 participants aged 40 years and older with no history of diabetes and who had available serum C-peptide levels from the baseline examination. We grouped the participants by C-peptide quartile, and we performed Cox proportional hazards regression analysis. The primary outcome was all-cause, cardiovascular-related and coronary artery disease-related mortality.

resultsThe mean serum C-peptide level in the study sample was 0.78 (± standard deviation 0.47) nmol/L. The adjusted hazards ratio comparing the highest quartile with the lowest quartile was 1.80 (95% confidence interval [CI] 1.33-2.43) for all-cause mortality, 3.20 (95% CI 2.07-4.93) for cardiovascular-related mortality, and 2.73 (95% CI 1.55-4.82) for coronary artery disease-related mortality. Higher C-peptide levels were associated with increased mortality among strata of glycated hemoglobin and fasting serum glucose.

interpretationWe found an association between serum C-peptide levels and all-cause and cause-specific mortality among adults without diabetes at baseline. Our finding suggests that elevated C-peptide levels may be a predictor of death.

Indexed as

MortalityAdultAgedAged, 80 and overAge FactorsBiomarkersBlood GlucoseCardiovascular DiseasesCoronary Artery DiseaseC-PeptideFemaleGlycated HemoglobinHumansKaplan-Meier EstimateMaleMiddle AgedBiomarkersBlood GlucoseC-PeptideGlycated Hemoglobin

Identifiers

PMID23589428
PMCPMC3680586
OpenAlexW2167764975

What OpenQuestion holds

Textmetadata
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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.