Evidence map›Paper›PMID 26885530›Full record

ArticleJournal of diabetes research2016

Vitamin D Deficiency Is Not Associated with Diabetic Retinopathy or Maculopathy.

Uazman Alam, Yasar Amjad, Anges Wan Shan Chan, Omar Asghar, Ioannis N Petropoulos, Rayaz A Malik

Open access · goldAbstract read
In one paragraph

Article in Journal of diabetes research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 4 pooled it
5.2field-weighted citation impact, top 4% 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

32 citing papers in PubMed, 4 syntheses or guidelines pooled it, 67 citations in OpenAlex.

  1. Pooled it
  2. Vitamin D and Ocular Diseases: A Systematic Review.International journal of molecular sciences · 2022
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  9. Impact of Vitamin D Deficiency and VDRFood science & nutrition · 2025
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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

6 authors at 3 institutions in 2 countries.

Uazman AlamCentre for Endocrinology and Diabetes, Institute of Human Development, University of Manchester and the Manchester Royal Infirmary, Central Manchester Hospital Foundation Trust, Manchester M13 9NT, UK.
Yasar AmjadCentre for Endocrinology and Diabetes, Institute of Human Development, University of Manchester and the Manchester Royal Infirmary, Central Manchester Hospital Foundation Trust, Manchester M13 9NT, UK.
Anges Wan Shan ChanDepartment of Medicine, Barts and the London School of Medicine and Dentistry, London E1 2AD, UK.
Omar AsgharCentre for Endocrinology and Diabetes, Institute of Human Development, University of Manchester and the Manchester Royal Infirmary, Central Manchester Hospital Foundation Trust, Manchester M13 9NT, UK.
Ioannis N PetropoulosDepartment of Medicine, Barts and the London School of Medicine and Dentistry, London E1 2AD, UK.
Rayaz A MalikCentre for Endocrinology and Diabetes, Institute of Human Development, University of Manchester and the Manchester Royal Infirmary, Central Manchester Hospital Foundation Trust, Manchester M13 9NT, UK; Weill Cornell Medical College in Qatar, Doha, Qatar.
Manchester Royal Infirmary · GBQueen Mary University of London · GBUniversity of Manchester · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundExperimental and clinical studies suggest a possible association between vitamin D deficiency and both diabetic retinopathy and maculopathy.

methodsWe have performed a cross-sectional study in adults with types 1 and 2 diabetes mellitus. The relationship between the presence and severity of diabetic retinopathy and maculopathy with serum 25-hydroxyvitamin D concentration was evaluated using logistic regression analyses in the presence of demographic and clinical covariates.

results657 adults with diabetes were stratified based on retinopathy grading: No Diabetic Retinopathy (39%), Background Diabetic Retinopathy (37%), Preproliferative Diabetic Retinopathy (21%), and Proliferative Diabetic Retinopathy (3%), respectively. There were no differences in serum 25-hydroxyvitamin D concentrations (25(OH)D) between the groups (15.3 ± 9.0 versus 16.4 ± 10.5 versus 15.9 ± 10.4 versus 15.7 ± 8.5 ng/mL, P = NS). Logistic regression analysis demonstrated no statistically significant relationship between the severity of retinopathy and serum 25(OH)D. Furthermore, there was no difference in serum 25(OH)D between those with (n = 94, 14%) and those without (n = 563, 86%) Diabetic Maculopathy (16.2 ± 10.0 versus 15.8 ± 9.8, P = NS) and no relationship was demonstrated by logistic regression analyses between the two variables.

conclusionsThis study has found no association between serum 25(OH)D and the presence and severity of diabetic retinopathy or maculopathy.

Indexed as

AdultAgedAnthropometryBlood PressureCross-Sectional StudiesDiabetes Mellitus, Type 1Diabetes Mellitus, Type 2Diabetic RetinopathyFemaleHumansMacular DegenerationMaleMiddle AgedRegression AnalysisVitamin DVitamin D Deficiency25-hydroxyvitamin DVitamin D

Identifiers

PMID26885530
PMCPMC4738746
OpenAlexW2224686184

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.