Evidence map›Paper›PMID 18675696›Full record

ArticleOphthalmology2008

Optical coherence tomography measurements and analysis methods in optical coherence tomography studies of diabetic macular edema.

David J Browning, Adam R Glassman, Lloyd P Aiello, Neil M Bressler, Susan B Bressler, Ronald P Danis, Matthew D Davis, Frederick L Ferris, Suber S Huang, Peter K Kaiser and 5 more

Open access · greenAbstract read
In one paragraph

Article in Ophthalmology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 26% 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

59 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
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  8. Selective retina therapy (SRT) for clinically significant diabetic macular edema.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2010
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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

15 authors at 1 institution in 1 country.

David J BrowningJaeb Center for Health Research, 15310 Amberly Drive, Suite 350, Tampa, FL 33647, USA. drcrnetX1@jaeb.org
Adam R Glassman
Lloyd P Aiello
Neil M Bressler
Susan B Bressler
Ronald P Danis
Matthew D Davis
Frederick L Ferris
Suber S Huang
Peter K Kaiser
Craig Kollman
Srinavas Sadda
Ingrid U Scott
Haijing Qin
Diabetic Retinopathy Clinical Research Network
Jaeb Center for Health Research · US

Funding

DIABETIC RETINOPATHY CLINICAL RESEARCH NETWORK COORDINATING CENTERU10EY014231 · NEI · JAEB CENTER FOR HEALTH RESEARCH, INC. · PI GLASSMAN, ADAM R · 2002 to 2018
$91.2M
DRCR Retina NetworkUG1EY014231 · NEI · JAEB CENTER FOR HEALTH RESEARCH, INC. · PI Adam R Glassman, DANIEL F MARTIN · 2019 to 2026
$75.4M
Diabetic Retinopathy Clinical Research NetworkU10EY014229 · NEI · UNIVERSITY OF WISCONSIN-MADISON · PI DANIS, RONALD · 2002 to 2008
$2.4M
Diabetic Retinopathy Clinical Research Network Chair GrantU10EY023207 · NEI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI JAMPOL, LEE M · 2014 to 2018
$1.8M
Study Chair Core Center:DME Clinical Research NetworkU10EY014269 · NEI · JOSLIN DIABETES CENTER · PI AIELLO, LLOYD P · 2002 to 2005
$1.1M
NEI NIH HHS EY14229NEI NIH HHS EY14231NEI NIH HHS EY14269NEI NIH HHS U10 EY014229NEI NIH HHS U10 EY014231NEI NIH HHS U10 EY014269NEI NIH HHS U10 EY023207NEI NIH HHS UG1 EY014231
6 · The paper itself

Abstract

objectiveTo evaluate optical coherence tomography (OCT) measurements and methods of analysis of OCT data in studies of diabetic macular edema (DME).

designAssociations of pairs of OCT variables and results of 3 analysis methods using data from 2 studies of DME.

participantsTwo hundred sixty-three subjects from a study of modified Early Treatment of Diabetic Retinopathy Study (mETDRS) versus modified macular grid (MMG) photocoagulation for DME and 96 subjects from a study of diurnal variation of DME.

methodsCorrelations were calculated for pairs of OCT variables at baseline and for changes in the variables over time. Distribution of OCT measurement changes, predictive factors for OCT measurement changes, and treatment group outcomes were compared when 3 measures of change in macular thickness were analyzed: absolute change in retinal thickness, relative change in retinal thickness, and relative change in retinal thickening.

main outcome measuresConcordance of results using different OCT variables and analysis methods.

resultsCenter point thickness correlated highly with central subfield mean thickness (CSMT) at baseline (0.98-0.99). The distributions of changes in CSMT were approximately normally distributed for absolute change in retinal thickness and relative change in retinal thickness, but not for relative change in retinal thickening. Macular thinning in the mETDRS group was significantly greater than in the MMG group when absolute change in retinal thickness was used, but not when relative change in thickness and relative change in thickening were used. Relative change in macular thickening provides unstable data in eyes with mild degrees of baseline thickening, unlike the situation with absolute or relative change in retinal thickness.

conclusionsCentral subfield mean thickness is the preferred OCT measurement for the central macula because of its higher reproducibility and correlation with other measurements of the central macula. Total macular volume may be preferred when the central macula is less important. Absolute change in retinal thickness is the preferred analysis method in studies involving eyes with mild macular thickening. Relative change in thickening may be preferable when retinal thickening is more severe.

Indexed as

Circadian RhythmData Interpretation, StatisticalDiabetic RetinopathyHumansLaser CoagulationMacular EdemaReproducibility of ResultsRetinaTomography, Optical Coherence

Identifiers

PMID18675696
PMCPMC2748270
OpenAlexW1499779252

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.