Evidence map›Paper›PMID 27607348›Full record

ArticlePloS one2016

Vitamin D Deficiency and Glycemic Status in Children and Adolescents with Type 1 Diabetes Mellitus.

Silvia Savastio, Francesco Cadario, Giulia Genoni, Giorgio Bellomo, Marco Bagnati, Gioel Secco, Raffaella Picchi, Enza Giglione, Gianni Bona

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05141968 (The Effects of Vitamin D Supplementation on Glycemic Control in Children With Type 1 Diabetes Mellitus in Gaza Strip, A Randomized Controlled Trial), which is not on this map. Cited by 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
6.4field-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.

NCT05141968 nacompletednot on this mapstarted 2017, after this paper: background citation

The Effects of Vitamin D Supplementation on Glycemic Control in Children With Type 1 Diabetes Mellitus in Gaza Strip, A Randomized Controlled Trial

TypeinterventionalSponsorAl-Azhar UniversityRan2017 to 2021Enrolled80ConditionsType 1 Diabetes Mellitus, Vitamin D DeficiencyArmsvitamin D supplements (2000 IU/day)
3 · Its place in the literature

Who cites it

37 citing papers in PubMed, 1 synthesis or guideline pooled it, 83 citations in OpenAlex.

  1. Pooled it
  2. A study of 25-(OH)DExperimental and therapeutic medicine · 2026
    Article
  3. Review
  4. The Role of Vitamin D in Autoimmune Diseases.International journal of molecular sciences · 2026
    Review
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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

9 authors at 2 institutions in 1 country.

Silvia SavastioDivision of Pediatrics, Department of Health Sciences, University of Piemonte Orientale, Novara, Italy.
Francesco CadarioDivision of Pediatrics, Department of Health Sciences, University of Piemonte Orientale, Novara, Italy.
Giulia GenoniDivision of Pediatrics, Department of Health Sciences, University of Piemonte Orientale, Novara, Italy.
Giorgio BellomoCentral Laboratory of Maggiore della Carità Hospital, University of Piemonte Orientale, Novara, Italy.
Marco BagnatiCentral Laboratory of Maggiore della Carità Hospital, University of Piemonte Orientale, Novara, Italy.
Gioel SeccoDivision of Cardiology, Ospedale Santi Antonio e Biagio e Cesare Arrigo, Alessandria, Italy.
Raffaella PicchiDivision of Pediatrics, Department of Health Sciences, University of Piemonte Orientale, Novara, Italy.
Enza GiglioneDivision of Pediatrics, Department of Health Sciences, University of Piemonte Orientale, Novara, Italy.
Gianni BonaDivision of Pediatrics, Department of Health Sciences, University of Piemonte Orientale, Novara, Italy.
Università degli Studi del Piemonte Orientale “Amedeo Avogadro” · ITAzienda Ospedaliera Nazionale SS. Antonio e Biagio e Cesare Arrigo · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVitamin D (25OHD) effects on glycemic control are unclear in children and adolescents with type 1 diabetes. Aims of this study were to investigate 25OHD status among children with T1DM and its relationship with insulin sensitivity and glycemic status. SUBJECTS AND

methodsA cross sectional study was carried out between 2008-2014. A total of 141 patients had a T1DM >12 months diagnosis and were enrolled in the present study. Of these 35 (24.8%) were migrants and 106 (75.2%) Italians (T2). We retrospectively analyzed data at the onset of the disease (T0)(64 subjects) and 12-24 months before the last visit (T1,124 subjects). Fasting glucose, glycated hemoglobin (HbA1c), 25OHD levels and daily insulin requirement were evaluated and Cholecalciferol 1000 IU/day supplementation for the management of vitamin D insufficiency (<75 nmol/L) was systematically added.

resultsA generalized 25OHD insufficiency was found at each study time, particularly in migrants. At T0, the 25OHD levels were inversely related to diabetic keto-acidosis (DKA) severity (p<0.05). At T1 and T2, subjects with 25OHD ≤25nmol/L (10 ng/mL) showed higher daily insulin requirement (p<0.05) and HbA1c values (p<0.01) than others vitamin D status. The 25OHD levels were negatively related with HbA1c (p<0.001) and daily insulin dose (p<0.05) during follow up. There was a significant difference in 25OHD (p<0.01) between subjects with different metabolic control (HbA1c <7.5%,7.5-8%,>8%), both at T1 and T2. In supplemented subjects, we found a significant increase in 25OHD levels (p<0.0001) and decrease of HbA1c (p<0.001) between T1 and T2, but this was not significant in the migrants subgroup. Multivariate regression analysis showed a link between HbA1c and 25OHD levels (p<0.001).

conclusionsChildren with T1DM show a generalized 25OHD deficiency that impact on metabolic status and glycemic homeostasis. Vitamin D supplementation improves glycemic control and should be considered as an additional therapy.

Indexed as

AdolescentChildDiabetes Mellitus, Type 1Dietary SupplementsGlycated HemoglobinHumansHyperglycemiaInsulinItalyTransients and MigrantsVitamin DVitamin D Deficiency25-hydroxyvitamin DGlycated HemoglobinInsulinVitamin D

Identifiers

PMID27607348
PMCPMC5015862
OpenAlexW2509232644

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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.