Evidence map›Paper›PMID 33823331›Full record

ArticleDiabetes & metabolic syndrome

Impact of the vitamin D deficiency on COVID-19 infection and mortality in Asian countries.

Ranil Jayawardena, Dhanushya T Jeyakumar, Tormalli V Francis, Anoop Misra

Open access · greenAbstract read
In one paragraph

Article in Diabetes & metabolic syndrome. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 3 pooled it
5.6field-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.

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

17 citing papers in PubMed, 3 syntheses or guidelines pooled it, 38 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Review
  5. Article
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  10. Cumulative effects of air pollution and climate drivers on COVID-19 multiwaves in Bucharest, Romania.Process safety and environmental protection : transactions of the Institution of Chemical Engineers, Part B · 2022
    Article
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  13. Capability of novel fluorescence DNA-conjugated CdTe/ZnS quantum dots nanoprobe for COVID-19 sensing.Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy · 2022
    Article
  14. Article
  15. Article
  16. Article
  17. Impact of vitamin D deficiency on COVID-19.Clinical nutrition ESPEN · 2021
    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

4 authors at 2 institutions in 2 countries.

Ranil JayawardenaDepartment of Physiology, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka; School of Exercise & Nutrition Sciences, Queensland University of Technology, Brisbane, Queensland, Australia. Electronic address: ranil@physiol.cmb.ac.lk.
Dhanushya T JeyakumarHealth and Wellness Unit, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka; Department of Biosystems Technology, Faculty of Technology, Sabaragamuwa University of Sri Lanka, Sri Lanka.
Tormalli V FrancisHealth and Wellness Unit, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka.
Anoop MisraFortis-C-DOC Centre of Excellence for Diabetes, Metabolic Diseases and Endocrinology, Chirag Enclave, New Delhi, India.
University of Colombo · LKQueensland University of Technology · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimsCOVID-19 is a pandemic that has affected beyond 100 million and caused nearly 3 million deaths globally. Vitamin D is a known risk factor for COVID-19. Therefore, we aimed to investigate the association of prevalence of vitamin D deficiency and mean vitamin D level with COVID-19 infection and mortality in Asia, predicting with other confounding factors such as median age, obesity, and diabetes.

methodsCOVID-19 infections and mortalities among the Asian countries were retrieved from the Worldometer website. Information on prevalence of vitamin D deficiency and mean vitamin D values in each Asian country was retrieved through literature searching on PubMed® and Google scholar. The associations between COVID-19 infections and mortalities with prevalence of vitamin D deficiency and mean vitamin D level were explored with correlation coefficients. As a predictive analysis, multiple linear regression was carried out with all confounders.

resultsPositive correlations were observed for prevalence of vitamin D deficiency with COVID-19 infections (r = 0.55; p = 0.01; R

conclusionPrevalence of vitamin D deficiency is significantly positively associated whereas the mean vitamin D level is significantly negatively associated with both infection and mortality rate of COVID-19 among Asian countries upon predicting with all confounders.

Indexed as

AdolescentAdultAgedAged, 80 and overAge FactorsAsiaChildChild, PreschoolCOVID-19Diabetes ComplicationsDiabetes MellitusFemaleHumansInfantInfant, NewbornMaleAsiaCOVID-19InfectionMortalityVitamin D

Identifiers

PMID33823331
PMCPMC7955807
OpenAlexW3137394994

What OpenQuestion holds

Textmetadata
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.