Evidence mapPaperPMID 36813495Full record

ArticleBMJ open2023

Proportion of people with diabetic retinopathy and macular oedema varies by ethnicity in a tertiary retinal clinic in Australia: findings from the Liverpool Eye and Diabetes Study (LEADS).

Gerald Liew, Tania Tsang, Bridget Marshall, Mercy Saw, Levon Michael Khachigian, Stephen Ong, I-Van Ho, Vincent Wong

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
1.1field-weighted citation impact, top 25% 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

2 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
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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

8 authors at 2 institutions in 1 country.

Gerald LiewCentre for Vision Research, Westmead Institute for Medical Research, The University of Sydney, Sydney, New South Wales, Australia gerald.liew@sydney.edu.au.ORCID 0000-0001-7422-0012
Tania TsangSouth West Retina, Dept of Clinical Trials, Sydney, New South Wales, Australia.
Bridget MarshallSchool of Medicine, University of New South Wales, Sydney, New South Wales, Australia.
Mercy SawSchool of Medicine, University of New South Wales, Sydney, New South Wales, Australia.
Levon Michael KhachigianVascular Biology and Translational Research, School of Medical Sciences, University of New South Wales, Sydney, New South Wales, Australia.ORCID 0000-0003-3446-0323
Stephen OngSouth West Retina, Dept of Clinical Trials, Sydney, New South Wales, Australia.
I-Van HoSouth West Retina, Dept of Clinical Trials, Sydney, New South Wales, Australia.
Vincent WongFaculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia.
UNSW Sydney · AUThe University of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThere are limited data on the influence of ethnicity on diabetic retinopathy (DR). We sought to determine the distribution of DR by ethnic group in Australia.

designClinic-based cross-sectional study.

settingParticipants with diabetes in a defined geographical region of Sydney, Australia, who attended a tertiary retina referral clinic.

participantsThe study recruited 968 participants.

interventionParticipants underwent a medical interview and retinal photography and scanning. PRIMARY OUTCOME MEASURES: DR was defined from two-field retinal photographs. Diabetic macular oedema (DMO) was defined from spectral domain optical coherence tomography (OCT-DMO). The main outcomes were any DR, proliferative DR (PDR), clinically significant macular oedema (CSME), OCT-DMO and sight-threatening DR (STDR).

resultsThere was high proportion of any DR (52.3%), PDR (6.3%), CSME (19.7%), OCT-DMO (28.9%) and STDR (31.5%) in people attending a tertiary retinal clinic. Participants of Oceanian ethnicity had the highest proportion of any DR and STDR (70.4% and 48.1%, respectively), while the lowest proportion was in participants of East Asian ethnicity (38.3% and 15.8%, respectively). Proportion of any DR and STDR in Europeans was 54.5% and 30.3%, respectively. Independent predictive factors for diabetic eye disease were ethnicity, longer duration of diabetes, higher glycated haemoglobin and higher blood pressure. Even after adjusting for risk factors, Oceanian ethnicity remained associated with twofold higher odds of any DR (adjusted OR 2.10, 95% CI 1.10 to 4.00) and all other forms of DR including STDR (adjusted OR 2.22, 95% CI 1.19 to 4.15).

conclusionIn people attending a tertiary retinal clinic, the proportion of people with DR varies among ethnic groups. The high proportion in persons of Oceanian ethnicity suggests a need for targeted screening of this at-risk group. In addition to traditional risks factors, ethnicity may be an additional independent predictor of DR.

Indexed as

Diabetes Mellitus, Type 2Diabetic RetinopathyMacular EdemaCross-Sectional StudiesEthnicityHumansRetinaDiabetic retinopathyEPIDEMIOLOGYMedical retina

Identifiers

PMID36813495
PMCPMC9950882
OpenAlexW4321503815

What Socratic holds

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LicenceCC BY-NC
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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 Socratic graph.