Evidence map›Paper›PMID 24946100›Full record

ArticleRetina (Philadelphia, Pa.)2014

Vitamin D deficiency in neovascular versus nonneovascular age-related macular degeneration.

Sujit Itty, Shelley Day, Kenneth W Lyles, Sandra S Stinnett, Lejla M Vajzovic, Prithvi Mruthyunjaya

Open access · greenAbstract readComparative Study
In one paragraph

Article in Retina (Philadelphia, Pa.), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
3.4field-weighted citation impact, top 8% 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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 36 citations in OpenAlex.

  1. Vitamin D and Ocular Diseases: A Systematic Review.International journal of molecular sciences · 2022
    Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Observational
  6. Serum 25-hydroxy vitamin D levels in age-related macular degeneration.International journal of retina and vitreous · 2022
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Vitamin D and regulation of vascular cell function.American journal of physiology. Heart and circulatory physiology · 2018
    Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. 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

6 authors at 3 institutions in 1 country.

Sujit Itty*Department of Ophthalmology, Duke University Medical Center; †Department of Ophthalmology, Stanford Medical Center; ‡Department of Medicine, Duke University Medical Center; §Geriatric Research Education and Clinical Centers, Veterans Affairs Medical Center, Durham, North Carolina; ¶The Carolinas Center for Medical Excellence, Cary, North Carolina; and **Division of Biostatistics, Duke University Medical Center.
Shelley Day
Kenneth W Lyles
Sandra S Stinnett
Lejla M Vajzovic
Prithvi Mruthyunjaya
Duke Medical Center · USDuke University Hospital · USStanford Medicine · US

Funding

Resource Core 3 - Metabolomics CoreP30AG028716 · NIA · DUKE UNIVERSITY · PI CATHLEEN S COLON-EMERIC · 2006 to 2026
$24.6M
Taste and smell enhancement in older cancer patientsP60AG011268 · NIA · DUKE UNIVERSITY · PI COHEN, HARVEY JAY · 1992 to 2005
$5.8M
NIA NIH HHS P30 AG028716NIA NIH HHS P60 AG011268PHS HHS 2P308716-06
6 · The paper itself

Abstract

purposeTo compare 25-hydroxyvitamin D (25OHD) levels in patients with neovascular age-related macular degeneration (NVAMD) with patients with nonneovascular age-related macular degeneration and control patients.

methodsMedical records of all patients diagnosed with age-related macular degeneration and tested for serum 25OHD level at a single medical center were reviewed. Control patients were selected from patients diagnosed with pseudophakia but without age-related macular degeneration. The lowest 25OHD level available for each patient was recorded.

resultsTwo hundred sixteen patients with nonneovascular age-related macular degeneration, 146 with NVAMD, and 100 non-age-related macular degeneration control patients were included. The levels of 25OHD (mean ± SD) were significantly lower in NVAMD patients (26.1 ± 14.4 ng/mL) versus nonneovascular age-related macular degeneration (31.5 ± 18.2 ng/mL, P = 0.003) and control (29.4 ± 10.1 ng/mL, P = 0.049) patients. The prevalence of vitamin D insufficiency (<30 ng/mL 25OHD), deficiency (<20 ng/mL), and severe deficiency (<10 ng/mL) were highest in the NVAMD group. The highest quintile of 25OHD was associated with a 0.35 (95% confidence interval, 0.18-0.68) odds ratio for NVAMD.

conclusionThis is the largest study to compare 25OHD levels in patients with the different clinical forms of age-related macular degeneration. Mean 25OHD levels were lower and vitamin D deficiency was more prevalent in NVAMD patients. These associations suggest that further research is necessary regarding vitamin D deficiency as a potentially modifiable risk factor for the development of NVAMD.

Indexed as

AgedAged, 80 and overChromatography, LiquidFemaleGeographic AtrophyHumansMalePseudophakiaTandem Mass SpectrometryVitamin DVitamin D DeficiencyWet Macular Degeneration25-hydroxyvitamin DVitamin D

Identifiers

PMID24946100
PMCPMC4402569
OpenAlexW2321279150

What OpenQuestion holds

Textmetadata
LicenceTDM
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.