Evidence map›Paper›PMID 35752843›Full record

ReviewDiabetology & metabolic syndrome2022

Effect of vitamin D supplementation on cardiac-metabolic risk factors in elderly: a systematic review and meta-analysis of clinical trials.

Mostafa Qorbani, Maryam Zarei, Yousef Moradi, Geeta Appannah, Shirin Djalainia, Kumars Pourrostami, Hanieh-Sadat Ejtahed, Armita Mahdavi-Gorabi, Ebrahim Khalil Naderali, Maryam Khazdouz

Open access · goldAbstract readReview
In one paragraph

Review in Diabetology & metabolic syndrome, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 17% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. 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

10 authors at 6 institutions in 3 countries.

Mostafa Qorbani *Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran.
Maryam Zarei *Department of Nutrition Community, Deputy of Health affairs, Ministry of Health and Medical Education, Tehran, Iran.
Yousef MoradiSocial Determinants of Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran.
Geeta AppannahDepartment of Nutrition, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.
Shirin DjalainiaDevelopment of Research & Technology Center, Deputy of Research and Technology, Ministry of Health and Medical Education, Tehran, Iran.
Kumars PourrostamiNon-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran.
Hanieh-Sadat EjtahedObesity and Eating Habits Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
Armita Mahdavi-GorabiSocial Determinants of Health Research Center, Alborz University of Medical Sciences, Karaj, Iran.
Ebrahim Khalil NaderaliDepartment of Health Sciences, Liverpool Hope University, Hope Park, UK.
Maryam KhazdouzGrowth and Development Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran. Maryam.khazdouz@hotmail.com.
Tehran University of Medical Sciences · IRAlborz University of Medical SciencesMinistry of Health and Medical Education · IRKurdistan University of Medical Sciences · IRLiverpool Hope University · GBUniversiti Putra Malaysia · MY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere has been a longstanding interest in the potential effect of vitamin D in preventing cardiac-metabolic diseases. However, there are divergent results regarding the impact of vitamin D supplementation (VDS) on managing cardiac-metabolic outcomes in the elderly population. MATERIAL AND

methodWe systematically searched electronic databases; Web of Science, PubMed, Scopus, EMBASE, Cochrane, and ProQuest. We included all trials that evaluated the effect of VDS on cardiac-metabolic risk factors in the elderly population, which were published until 30 September 2021. The effects of VDS on cardiac-metabolic outcomes were assessed using standardized mean difference (SMD). A random-effect model was used to pool the SMD and 95% confidence interval (CI).

resultThe literature search identified 4409 studies, of which 12 trials met inclusion criteria. Results of random effect meta-analysis indicated a significant reduction in total cholesterol (TC) (SMD: - 0.14 mg/dl; 95% CI: - 0.25, - 0.02) and triglyceride (TG) (SMD: - 0.45 mg/dl; 95% CI: - 0.86, - 0.04) with VDS compared to the placebo. The subgroup analyses revealed that the reduction of TG in patients with diabetes and vitamin D deficiency was significant. Furthermore, short-term intervention (≤ 6 months) induced a significantly lower level of TG and insulin in comparison to longer duration (> 6 months).

conclusionThe study suggests that VDS could improve insulin concentration and dyslipidemia in the elderly population. The systematic review was registered in Alborz university of medical sciences with 2060-01-03-1397 number and the Ethics council IR.ABZUMS.REC.1397.207 number.

Indexed as

Cardiac-metabolicElderlySupplementationVitamin D

Identifiers

PMID35752843
PMCPMC9233853
OpenAlexW4283455020

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.