Evidence map›Paper›PMID 34526306›Full record

ArticleBMJ open diabetes research & care2021

Residual C-peptide secretion and hypoglycemia awareness in people with type 1 diabetes.

Martine J Wellens, Charlotte E Vollenbrock, Pim Dekker, Lianne S M Boesten, Petronella H Geelhoed-Duijvestijn, Martine M C de Vries-Velraeds, Giesje Nefs, Bruce H R Wolffenbuttel, Henk-Jan Aanstoot, Peter R van Dijk

Open access · goldAbstract read
In one paragraph

Article in BMJ open diabetes research & care, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.2field-weighted citation impact, top 11% 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

13 citing papers in PubMed, 20 citations in OpenAlex.

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  11. Fasting and meal-stimulated serum C-peptide in long-standing type 1 diabetes mellitus.Diabetic medicine : a journal of the British Diabetic Association · 2023
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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

10 authors at 4 institutions in 2 countries.

Martine J WellensDepartment of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands.
Charlotte E VollenbrockDepartment of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands.
Pim DekkerDiabeter, Center for Paediatric and Adolescent Diabetes Care and Research, Rotterdam, The Netherlands.
Lianne S M BoestenDepartment of Clinical Chemistry, IJsselland Hospital, Capelle aan den IJssel, Netherlands.
Petronella H Geelhoed-DuijvestijnDepartment of Internal Medicine, Medical Centre Haaglanden, Den Haag, The Netherlands.
Martine M C de Vries-VelraedsDiabeter, Center for Paediatric and Adolescent Diabetes Care and Research, Rotterdam, The Netherlands.
Giesje NefsDiabeter, Center for Paediatric and Adolescent Diabetes Care and Research, Rotterdam, The Netherlands.
Bruce H R WolffenbuttelDepartment of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands bwo@umcg.nl.ORCID 0000-0001-9262-6921
Henk-Jan AanstootDiabeter, Center for Paediatric and Adolescent Diabetes Care and Research, Rotterdam, The Netherlands.
Peter R van DijkDepartment of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands.ORCID 0000-0002-9702-6551
Diabetes Care Center · USUniversity Medical Center Groningen · NLIJsselland Ziekenhuis · NLMedisch Centrum Haaglanden · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThis study aimed to assess the association between fasting serum C-peptide levels and the presence of impaired awareness of hypoglycemia (IAH) in people with type 1 diabetes. RESEARCH DESIGN AND

methodsWe performed a cross-sectional study among 509 individuals with type 1 diabetes (diabetes duration 5-65 years). Extensive clinical data and fasting serum C-peptide concentrations were collected and related to the presence or absence of IAH, which was evaluated using the validated Dutch version of the Clarke questionnaire. A multivariable logistic regression model was constructed to investigate the association of C-peptide and other clinical variables with IAH.

resultsIn 129 (25%) individuals, residual C-peptide secretion was detected, while 75 (15%) individuals reported IAH. The median (IQR) C-peptide concentration among all participants was 0.0 (0.0-3.9) pmol/L. The prevalence of severe hypoglycemia was lower in people with demonstrable C-peptide versus those with absent C-peptide (30% vs 41%, p=0.025). Individuals with IAH were older, had longer diabetes duration, more frequently had macrovascular and microvascular complications, and more often used antihypertensive drugs, antiplatelet agents and cholesterol-lowering medication. There was a strong association between IAH and having a severe hypoglycemia in the preceding year. In multivariable regression analysis, residual C-peptide, either continuously or dichotomous, was associated with lower prevalence of IAH (p=0.040-0.042), while age at diabetes onset (p=0.001), presence of microvascular complications (p=0.003) and body mass index (BMI) (p=0.003) were also independently associated with the presence of IAH.

conclusionsHigher BMI, the presence of microvascular complications and higher age at diabetes onset were independent risk factors for IAH in people with type 1 diabetes, while residual C-peptide secretion was associated with lower risk of this complication.

Indexed as

Diabetes Mellitus, Type 1HypoglycemiaC-PeptideCross-Sectional StudiesHumansSurveys and QuestionnairesC-Peptideage of onsetawarenessC-peptidehypoglycemia

Identifiers

PMID34526306
PMCPMC8444236
OpenAlexW3199016742

What Socratic holds

Textmetadata
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.