Evidence map›Paper›PMID 28715580›Full record

ArticleInvestigative ophthalmology & visual science2017

Detection of Functional Change Using Cluster Trend Analysis in Glaucoma.

Stuart K Gardiner, Steven L Mansberger, Shaban Demirel

Abstract readComparative Study
In one paragraph

Article in Investigative ophthalmology & visual science, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
–field-weighted citation impact
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

23 citing papers in PubMed.

  1. Trial
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  8. Long- and Short-Term Variability of Perimetry in Glaucoma.Translational vision science & technology · 2022
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  11. Review
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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

3 authors.

Stuart K GardinerDevers Eye Institute, Legacy Research Institute, Portland, Oregon, United States.
Steven L MansbergerDevers Eye Institute, Legacy Research Institute, Portland, Oregon, United States.
Shaban DemirelDevers Eye Institute, Legacy Research Institute, Portland, Oregon, United States.

Funding

Functional Testing for GlaucomaR01EY020922 · NEI · LEGACY EMANUEL HOSPITAL AND HEALTH CENTER · PI GARDINER, STUART · 2011 to 2021
$3.2M
Predicting the rate of progression in glaucomaR01EY019674 · NEI · LEGACY EMANUEL HOSPITAL AND HEALTH CENTER · PI DEMIREL, SHABAN · 2009 to 2013
$1.8M
Department of Health 11/129/245NEI NIH HHS R01 EY019674NEI NIH HHS R01 EY020922
6 · The paper itself

Abstract

Purpose: Global analyses using mean deviation (MD) assess visual field progression, but can miss localized changes. Pointwise analyses are more sensitive to localized progression, but more variable so require confirmation. This study assessed whether cluster trend analysis, averaging information across subsets of locations, could improve progression detection. Methods: A total of 133 test-retest eyes were tested 7 to 10 times. Rates of change and P values were calculated for possible re-orderings of these series to generate global analysis ("MD worsening faster than x dB/y with P < y"), pointwise and cluster analyses ("n locations [or clusters] worsening faster than x dB/y with P < y") with specificity exactly 95%. These criteria were applied to 505 eyes tested over a mean of 10.5 years, to find how soon each detected "deterioration," and compared using survival models. This was repeated including two subsequent visual fields to determine whether "deterioration" was confirmed. Results: The best global criterion detected deterioration in 25% of eyes in 5.0 years (95% confidence interval [CI], 4.7-5.3 years), compared with 4.8 years (95% CI, 4.2-5.1) for the best cluster analysis criterion, and 4.1 years (95% CI, 4.0-4.5) for the best pointwise criterion. However, for pointwise analysis, only 38% of these changes were confirmed, compared with 61% for clusters and 76% for MD. The time until 25% of eyes showed subsequently confirmed deterioration was 6.3 years (95% CI, 6.0-7.2) for global, 6.3 years (95% CI, 6.0-7.0) for pointwise, and 6.0 years (95% CI, 5.3-6.6) for cluster analyses. Conclusions: Although the specificity is still suboptimal, cluster trend analysis detects subsequently confirmed deterioration sooner than either global or pointwise analyses.

Indexed as

AdultAgedAged, 80 and overCluster AnalysisDisease ProgressionFemaleFollow-Up StudiesGlaucoma, Open-AngleHumansMaleMiddle AgedScotomaSensitivity and SpecificityVisual FieldsVisual Field Tests

Identifiers

PMID28715580
PMCPMC5516565

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Registered trials

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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.