Evidence map›Paper›PMID 38160221›Full record

SynthesisEuropean journal of nutrition2024

Optimal vitamin D supplement dosage for improving insulin resistance in children and adolescents with overweight/obesity: a systematic review and network meta-analysis.

Linlian Zhu, Shan Li, Lijuan Zhong, Shiping Xu, Hongbin Zhu

Open access · hybridAbstract readSystematic ReviewNetwork Meta-Analysis
In one paragraph

Synthesis in European journal of nutrition, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 10% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Uncovering hidden vitamin D deficiency in overweight children.World journal of clinical pediatrics · 2025
    Review
  4. Vitamin D deficiency and adverse body composition in adolescents.Journal of orthopaedic surgery and research · 2025
    Article
  5. Review
  6. Article
  7. Observational
  8. Review
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

5 authors at 2 institutions in 1 country.

Linlian Zhu *Department of Nutriology, Dongtai People's Hospital, Dongtai, 224200, Jiangsu Province, China.
Shan Li *Department of Integrated TCM and Western Medicine, Dongtai People's Hospital, Dongtai, 224200, Jiangsu Province, China.
Lijuan ZhongDepartment of Endocrinology, Dongtai People's Hospital, Dongtai, 224200, Jiangsu Province, China.
Shiping XuDepartment of Cardiovascular Medicine, Dongtai People's Hospital, Dongtai, 224200, Jiangsu Province, China. zhulinlian_0824@163.com.
Hongbin ZhuDepartment of Endocrinology, Dongtai People's Hospital, Dongtai, 224200, Jiangsu Province, China. zhb6609dt@163.com.
Xingtai People's Hospital · CNHebei Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWe conducted a network meta-analysis which aims to evaluate the comparative efficacy of different supplementation dosages of vitamin D on cardiometabolic and bone-metabolic indicators as well as insulin resistance in children and adolescents with overweight/obesity.

methodsEligible studies published before December 10, 2022 were retrieved from PubMed, EMBASE, Cochrane Library, and Web of Science. Mean difference and 95% confidence interval (CI) were used to express pooled estimates. Network meta-analysis of multiple doses, including low (< 1000 IU/day, LDS), medium (1000-2000 IU/day, MDS), high (2000-4000 IU/day, HDS), and extremely high (> 4000 IU/day, EHDS) dosage strategy, was conducted using STATA/MP 14.0.

resultsOur network meta-analysis of 15 RCTs suggested that, compared with placebo and LDS, EHDS was increased 25-(OH)-D, with a pooled MD of 8.65 (95% CI 4.72-12.58) and 7.66 (95% CI 0.91-14.41), respectively. Meanwhile, EHDS also decreased ho meostasis model assessment-insulin resistance (HOMA-IR) (MD: - 0.74; 95% CI: - 1.45 to - 0.04) and C-reactive protein (CRP) (MD: - 18.99; 95% CI - 21.60 to - 16.38), and EHDS was also better than LDS (MD: - 18.47; 95% CI - 20.66 to - 16.28) and MDS (MD: - 19.69; 95% CI - 22.17 to - 17.21) in decreasing CRP. Ranking probability suggested that EHDS ranked best for increasing 25-(OH)-D, and decreasing HOMA-IR and CRP, with a probability of 86.1%, 83.1%, and 76.6%, respectively.

conclusionsThe results of our network meta-analysis suggest that EHDS may be the best strategy for vitamin D supplementation to reduce inflammatory responses as well as improve insulin resistance in children and adolescents with overweight/obesity. PROSPERO REGISTRATION NUMBER: CRD42023387775.

Indexed as

Insulin ResistanceAdolescentChildC-Reactive ProteinDietary SupplementsHumansObesityOverweightVitamin DC-Reactive ProteinVitamin DAdolescentChildrenObesityOverweightVitamin D

Identifiers

PMID38160221
PMCPMC10948536
OpenAlexW4390439484

What OpenQuestion 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 OpenQuestion graph.