Evidence mapPaperPMID 25411621Full record

ArticleJournal of diabetes investigation2014

Oral glucose tolerance test-based calculation identifies different glucose intolerance phenotypes within the impaired fasting glucose range.

Gian Piero Carnevale Schianca, Gian Paolo Fra, Marcello Bigliocca, Roberto Mella, Luca Rossi, Ettore Bartoli

Open access · goldAbstract read
In one paragraph

Article in Journal of diabetes investigation, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
field-weighted citation impact, top 87% 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

2 citing papers in PubMed, 5 citations in OpenAlex.

  1. Article
  2. 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

6 authors at 2 institutions in 1 country.

Gian Piero Carnevale SchiancaInternal Medicine University Hospital "Maggiore della carità" Novara Italy.
Gian Paolo FraInternal Medicine University Hospital "Maggiore della carità" Novara Italy.
Marcello BiglioccaInternal Medicine University Hospital "Maggiore della carità" Novara Italy ; Department of Clinical and Experimental Medicine Eastern Piedmont University "A. Avogadro" Novara Italy.
Roberto MellaInternal Medicine University Hospital "Maggiore della carità" Novara Italy ; Department of Clinical and Experimental Medicine Eastern Piedmont University "A. Avogadro" Novara Italy.
Luca RossiInternal Medicine University Hospital "Maggiore della carità" Novara Italy ; Department of Clinical and Experimental Medicine Eastern Piedmont University "A. Avogadro" Novara Italy.
Ettore BartoliInternal Medicine University Hospital "Maggiore della carità" Novara Italy ; Department of Clinical and Experimental Medicine Eastern Piedmont University "A. Avogadro" Novara Italy.
Azienda Ospedaliero Universitaria Maggiore della Carita · ITUniversità degli Studi del Piemonte Orientale “Amedeo Avogadro” · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

AIMS/

introductionThe conventional oral glucose tolerance test (OGTT) cannot detect future diabetics among isolated impaired fasting glucose (is-IFG) nor normal glucose tolerant (NGT) groups. By analyzing the relationship between fasting (FPG) and 2-h plasma glucose (2hPG), the present study identifies is-IFG subjects liable to worsening glucose homeostasis. MATERIALS AND

methodsOral glucose tolerance test was carried out in 619 patients suffering from obesity, hypertension or dyslipidemia, whose FPG was in the 100-125 mg/dL range. We calculated the percentage increment of 2hPG with respect to FPG (PG%) in these patients using the formula: ([2hPG - FPG] / FPG) × 100. Differences in β-cell function within is-IFG patients were assessed by estimated insulin sensitivity index (EISI), first-phase insulin release (1stPH) and 1stPH/1/EISI (1stPHcorrected).

resultsDiabetes was diagnosed in 69 patients (11.2%), combined IFG/impaired glucose tolerance (IGT) in 185 patients (29.9%) and is-IFG in 365 patients (58.9%). Is-IFG was subdivided into PG% tertile groups: the percentage of females increased from 25% in the lowest to 45.2% in the highest tertile (χ(2) = 18.7, P < 0.001). Moving from the lowest to the highest PG% tertile group, insulin and 2hPG concentrations rose, whereas FPG, EISI, and 1stPHcorrected decreased progressively and significantly. Furthemore, PG% correlated inversely with EISI (r = -0.44, P < 0.0001) and 1stPHcorrected (r = -0.38, P < 0.0001).

conclusionsOral glucose tolerance test does differentiate the great heterogeneity in metabolic disorders of patients with FPG 100-125 mg/dL. Furthermore, PG% can expand the diagnostic power of OGTT in the is-IFG range by distinguishing metabolic phenotypes very likely to herald different clinical risks.

Indexed as

Diabetes riskImpaired fasting glucoseOral glucose tolerance test‐based index

Identifiers

PMID25411621
PMCPMC4188111
OpenAlexW2052773925

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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.