Evidence map›Paper›PMID 33632154›Full record

ArticleBMC nephrology2021

Investigation of associations between retinal microvascular parameters and albuminuria in UK Biobank: a cross-sectional case-control study.

Euan N Paterson, Chris Cardwell, Thomas J MacGillivray, Emanuele Trucco, Alexander S Doney, Paul Foster, Alexander P Maxwell, Gareth J McKay, UK Biobank Eye and Vision Consortium

Abstract read
In one paragraph

Article in BMC nephrology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

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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

9 authors.

Euan N PatersonCentre for Public Health, Institute of Clinical Science, Queen's University Belfast, Block B, Royal Hospital, Grosvenor Road, Belfast, Northern Ireland, BT12 6BA.
Chris CardwellCentre for Public Health, Institute of Clinical Science, Queen's University Belfast, Block B, Royal Hospital, Grosvenor Road, Belfast, Northern Ireland, BT12 6BA.
Thomas J MacGillivrayVAMPIRE project, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, Scotland, UK.
Emanuele TruccoVAMPIRE project, Computer Vision and Image Processing Group, School of Science and Engineering (Computing), University of Dundee, Dundee, UK.
Alexander S DoneyNinewells Hospital and Medical School, University of Dundee, Dundee, UK.
Paul FosterMoorfields Eye Hospital, London, UK.
Alexander P MaxwellCentre for Public Health, Institute of Clinical Science, Queen's University Belfast, Block B, Royal Hospital, Grosvenor Road, Belfast, Northern Ireland, BT12 6BA.
Gareth J McKayCentre for Public Health, Institute of Clinical Science, Queen's University Belfast, Block B, Royal Hospital, Grosvenor Road, Belfast, Northern Ireland, BT12 6BA. g.j.mckay@qub.ac.uk.ORCID 0000-0001-8197-6280
UK Biobank Eye and Vision Consortium

Funding

Medical Research Council MC_PC_15025Medical Research Council MR/K003364/1Medical Research Council MR/T019050/1Medical Research Council MR/T040912/1
6 · The paper itself

Abstract

backgroundAssociations between microvascular variation and chronic kidney disease (CKD) have been reported previously. Non-invasive retinal fundus imaging enables evaluation of the microvascular network and may offer insight to systemic risk associated with CKD.

methodsRetinal microvascular parameters (fractal dimension [FD] - a measure of the complexity of the vascular network, tortuosity, and retinal arteriolar and venular calibre) were quantified from macula-centred fundus images using the Vessel Assessment and Measurement Platform for Images of the REtina (VAMPIRE) version 3.1 (VAMPIRE group, Universities of Dundee and Edinburgh, Scotland) and assessed for associations with renal damage in a case-control study nested within the multi-centre UK Biobank cohort study. Participants were designated cases or controls based on urinary albumin to creatinine ratio (ACR) thresholds. Participants with ACR ≥ 3 mg/mmol (ACR stages A2-A3) were characterised as cases, and those with an ACR < 3 mg/mmol (ACR stage A1) were categorised as controls. Participants were matched on age, sex and ethnic background.

resultsLower FD (less extensive microvascular branching) was associated with a small increase in odds of albuminuria independent of blood pressure, diabetes and other potential confounding variables (odds ratio [OR] 1.18, 95% confidence interval [CI] 1.03-1.34 for arterioles and OR 1.24, CI 1.05-1.47 for venules). Measures of tortuosity or retinal arteriolar and venular calibre were not significantly associated with ACR.

conclusionsThis study supports previously reported associations between retinal microvascular FD and other metabolic disturbances affecting the systemic vasculature. The association between retinal microvascular FD and albuminuria, independent of diabetes and blood pressure, may represent a useful indicator of systemic vascular damage associated with albuminuria.

Indexed as

AgedAlbuminuriaBiological Specimen BanksCase-Control StudiesCross-Sectional StudiesFemaleHumansMaleMicrovesselsMiddle AgedOrgan SizeRenal Insufficiency, ChronicRetinal VesselsUnited Kingdom

Identifiers

PMID33632154
PMCPMC7908698

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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.