Evidence map›Paper›PMID 21818133›Full record

ArticleEye (London, England)2011

Reconsidering the connection between vitamin D levels and age-related macular degeneration.

S Golan, V Shalev, G Treister, G Chodick, A Loewenstein

Open access · bronzeAbstract read
In one paragraph

Article in Eye (London, England), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
3.3field-weighted citation impact, top 9% 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

20 citing papers in PubMed, 2 syntheses or guidelines pooled it, 47 citations in OpenAlex.

  1. Vitamin D and Ocular Diseases: A Systematic Review.International journal of molecular sciences · 2022
    Pooled it
  2. Pooled it
  3. Article
  4. Observational
  5. Review
  6. Review
  7. Serum 25-hydroxy vitamin D levels in age-related macular degeneration.International journal of retina and vitreous · 2022
    Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Vitamin D and Diabetic Complications: True or False Prophet?Diabetes therapy : research, treatment and education of diabetes and related disorders · 2016
    Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. 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

5 authors at 2 institutions in 1 country.

S GolanDepartment of Ophthalmology Tel Aviv Medical Center, Tel Aviv, Israel. shanigol2@walla.com
V Shalev
G Treister
G Chodick
A Loewenstein
Maccabi Health Care Services · ILTel Aviv University · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeRecent evidence has suggested a correlation between reduced vitamin D levels and delayed angiogenesis and reduced inflammatory response, which are known to have a major role in the development and progression of age-related macular degeneration (AMD).

designCross-sectional study.

participantsMembers of the Maccabi Healthcare Services (MHS, one of the four largest Israeli Health Maintenance Organization) aged ≥60 years, whose vitamin D levels were taken as part of routine examinations between 2000 and 2008.

methodsAll data for this study were obtained from MHS databases that include medical information on 1.8 million subscribers.

main outcome measuresSerum 25-OH vitamin D levels.

resultsThe total study population comprised of 1045 members diagnosed as having AMD, and 8124 as non-AMD, for whom there was information on vitamin D levels. The mean±SD level of 25-OH vitamin D was 24.1±9.41  ng/ml (range 0.8-120) for the AMD patients and 24.13±9.50  ng/ml (range 0.0-120) for the controls (P=ns). One-third (33.6%) of the AMD patients and 32.86% of the controls had a 25-OH vitamin D level <16  ng/ml, and the proportions of tests in which the 25-OH vitamin D level was >74  ng/ml were 0.19 and 0.14%, respectively (P=ns).

conclusionsNo association was detected between vitamin D levels and the presence of AMD in this cross-sectional study. These results raise some doubt about an association between reduced vitamin D levels and the prevalence of AMD.

Indexed as

AgedAged, 80 and overCross-Sectional StudiesFemaleHumansIsraelMacular DegenerationMaleMiddle AgedPrevalenceVitamin D25-hydroxyvitamin DVitamin D

Identifiers

PMID21818133
PMCPMC3171790
OpenAlexW2049714446

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.