Evidence mapPaperPMID 39657252Full record

Observational studyThe Journal of clinical endocrinology and metabolism2025

Feasibility, Acceptability, and Validity of Home Continuous Glucose Monitoring-Based Oral Glucose Tolerance Test in Youth.

Adriana Rodriguez Gonzalez, Caleb Harrison, Brianna Hewitt, Jennifer L Mejier, Mary Ellen Vajravelu

Abstract readObservational StudyValidation Study
In one paragraph

Observational study in The Journal of clinical endocrinology and metabolism, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Adriana Rodriguez GonzalezCenter for Pediatric Research in Obesity and Metabolism and Division of Pediatric Endocrinology, Diabetes, and Metabolism, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA.
Caleb HarrisonCenter for Pediatric Research in Obesity and Metabolism and Division of Pediatric Endocrinology, Diabetes, and Metabolism, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA.
Brianna HewittCenter for Pediatric Research in Obesity and Metabolism and Division of Pediatric Endocrinology, Diabetes, and Metabolism, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA.
Jennifer L MejierDepartments of Medicine, Pediatrics, and Epidemiology, Dartmouth Geisel School of Medicine, Hanover, NH 03756, USA.
Mary Ellen VajraveluCenter for Pediatric Research in Obesity and Metabolism and Division of Pediatric Endocrinology, Diabetes, and Metabolism, University of Pittsburgh School of Medicine, Pittsburgh, PA 15224, USA.ORCID 0000-0002-5839-7923

Funding

University of Pittsburgh Clinical and Translational Science InstituteUL1TR001857 · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · 2025 to 2025
$10.1M
Clinical and Translational Science Institute UL1-TR-001857)Endocrine Fellows FoundationNCATS NIH HHS UL1 TR001857Tanner Scholar Advancing Equity Fund
6 · The paper itself

Abstract

contextHome-based approaches to type 2 diabetes (T2D) screening in youth may facilitate early diagnosis.

objectiveThis work aimed to evaluate feasibility, acceptability, and validity of a continuous glucose monitoring (CGM)-based oral glucose tolerance test (OGTT).

methodsA prospective observational study was conducted at a pediatric clinical and translational research center. Participants were youth aged 8 to 18 years with overweight/obesity and prediabetes-range glycated hemoglobin A1c (HbA1c), fasting glucose, or 2-hour glucose on OGTT, and/or one or more guideline-based T2D risk factors. Participants completed two 75 g 2-hour OGTT 1) at the research center using serum samples (research-OGTT), and 2) at home using blinded CGM (home-OGTT). Feasibility: Percentage with valid home-OGTT data (date/time reported, transmitter returned). Acceptability: Survey and interview responses. Validity: Sensitivity, specificity, positive- and negative predictive value (PPV, NPV) of home- vs research-OGTT dysglycemia (fasting ≥100 mg/dL; 2-hour ≥140 mg/dL).

resultsThirty-nine youth (54% female; 33% Black, 8% Hispanic/Latinx, 13% multiracial, 46% non-Hispanic White; age 14.6 ± 2.0 years; mean body mass index 37.0 ± 6.7 kg/m2) participated. HbA1c was 5.7% ± 0.4%, fasting glucose 85.7 ± 8.0 mg/dL, and 2-hour glucose 115.9 ± 25.9 mg/dL. Thirty (77%) had valid home-OGTT data. Acceptability was high (92% excellent/great, 8% neutral). Due to higher average values on home-OGTT, sensitivity and NPV were high (≥80%), while specificity (fasting: 10%; 2-hour: 25%) and PPV (fasting: 3.6%, 2-hour: 18.2%) were low.

conclusionHome-OGTT was acceptable, but strategies to precisely capture glucose ingestion timing could improve feasibility. Alternate dysglycemia thresholds may need to be defined prior to using CGM as a method for T2D screening in youth.

Indexed as

Blood GlucoseBlood Glucose Self-MonitoringDiabetes Mellitus, Type 2Patient Acceptance of Health CarePrediabetic StateAdolescentChildContinuous Glucose MonitoringFeasibility StudiesFemaleGlucose Tolerance TestGlycated HemoglobinHumansMaleProspective StudiesReproducibility of ResultsBlood GlucoseGlycated Hemoglobinhemoglobin A1c protein, humancontinuous glucose monitoringobesityoral glucose tolerance testtype 2 diabetes mellitusyouth

Identifiers

PMID39657252
PMCPMC12641520

What Socratic holds

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Registered trials

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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.