Evidence map›Paper›PMID 32034440›Full record

ArticleDiabetologia2020

Preserved C-peptide secretion is associated with fewer low-glucose events and lower glucose variability on flash glucose monitoring in adults with type 1 diabetes.

Fraser W Gibb, John A McKnight, Catriona Clarke, Mark W J Strachan

Open access · hybridAbstract read
In one paragraph

Article in Diabetologia, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
5.5field-weighted citation impact, top 3% 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

45 citing papers in PubMed, 60 citations in OpenAlex.

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  10. MRM-based LC-MS method for accurate C-peptide quantitation.Journal of mass spectrometry and advances in the clinical lab · 2025
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  14. Comparative Analysis of Islet Auto-Transplantation Outcome Classification Systems: Evaluating Concordance, Feasibility, and a Data-Driven Approach.Transplant international : official journal of the European Society for Organ Transplantation · 2025
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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

4 authors at 2 institutions in 1 country.

Fraser W GibbEdinburgh Centre for Endocrinology & Diabetes, Royal Infirmary of Edinburgh, Little France Crescent, Edinburgh, EH16 4SA, UK. fraser.gibb@ed.ac.uk.ORCID 0000-0002-5576-6463
John A McKnightEdinburgh Centre for Endocrinology & Diabetes, Western General Hospital, Edinburgh, UK.
Catriona ClarkeDepartment of Clinical Biochemistry, Western General Hospital, Edinburgh, UK.
Mark W J StrachanEdinburgh Centre for Endocrinology & Diabetes, Western General Hospital, Edinburgh, UK.
Western General Hospital · GBEdinburgh Royal Infirmary · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aims/hypothesisWe aimed to assess whether persistence of C-peptide secretion is associated with less glucose variability and fewer low-glucose events in adults with type 1 diabetes who use flash monitoring.

methodsWe performed a cross-sectional study of 290 adults attending a university teaching hospital diabetes clinic, with type 1 diabetes, who use flash monitoring and in whom a random plasma C-peptide was available in the past 2 years. Variables relating to flash monitoring were compared between individuals with low C-peptide (<10 pmol/l) and those with persistent C-peptide (either 10-200 pmol/l or 10-50 pmol/l). In addition, the relationship between self-reported hypoglycaemia and C-peptide was assessed (n = 167). Data are median (interquartile range).

resultsIndividuals with preserved C-peptide secretion (10-200 pmol/l) had shorter duration of diabetes (15 [9-24] vs 25 [15-34] years, p < 0.001) and older age at diagnosis (23 [14-28] vs 15 [9-25] years, p < 0.001), although current age did not differ in this cohort. Preserved C-peptide was associated with lower time with glucose <3.9 mmol/l (3% [2-6%] vs 5% [3-9%], p < 0.001), fewer low-glucose events per 2 week period (7 [4-10] vs 10 [5-16], p < 0.001), lower SD of glucose (3.8 [3.4-4.2] vs 4.1 [3.5-4.7] mmol/l, p = 0.017) and lower CV of glucose (38.0 [35.0-41.6] vs 41.8 [36.5-45.8], p < 0.001). These differences were also present in those with C-peptide 10-50 pmol/l and associations were independent of diabetes duration and estimated HbA CONCLUSIONS/

interpretationPreserved C-peptide secretion is associated with fewer low-glucose events and lower glucose variability on flash monitoring. This suggests that individuals with preserved C-peptide may more safely achieve intensive glycaemic targets.

Indexed as

AdolescentAdultBlood GlucoseBlood Glucose Self-MonitoringChildC-PeptideCross-Sectional StudiesDiabetes Mellitus, Type 1FemaleGlycated HemoglobinHumansHypoglycemic AgentsLogistic ModelsMaleYoung AdultBlood GlucoseC-PeptideGlycated HemoglobinHypoglycemic AgentsClinical diabetesContinuous glucose monitoringC-peptideDevicesHypoglycaemia

Identifiers

PMID32034440
PMCPMC7145780
OpenAlexW3005063061

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.