Evidence map›Paper›PMID 40157726›Full record

ArticleBMJ open2025

Measures of diabetic retinopathy treatment coverage: protocol for a methodological review.

Nimisha Chabba, Pushkar Raj Silwal, Covadonga Bascaran, Rinki Murphy, Iris Gordon, Nyawira Mwangi, Subash Bhatta, Nayana Pant, Matthew J Burton, Stuart Keel and 2 more

Abstract read
In one paragraph

Article in BMJ open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
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

12 authors.

Nimisha ChabbaSchool of Optometry and Vision Science, University of Auckland, Auckland, New Zealand nimisha.chabba@auckland.ac.nz.ORCID http://orcid.org/0009-0009-2863-7322
Pushkar Raj SilwalSchool of Optometry and Vision Science, University of Auckland, Auckland, New Zealand.ORCID http://orcid.org/0000-0001-6100-090X
Covadonga BascaranInternational Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, England, UK.
Rinki MurphySchool of Medicine, The University of Auckland, Auckland, New Zealand.ORCID http://orcid.org/0000-0002-0043-2423
Iris GordonInternational Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, England, UK.
Nyawira MwangiKenya Medical Training College, Nairobi, Kenya.
Subash BhattaPacific Eye Institute, Suva, Fiji.
Nayana PantDrishti Eye Care Hospital, Kathmandu, Nepal.
Matthew J BurtonInternational Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, England, UK.
Stuart KeelDepartment of Noncommunicable Diseases, World Health Organization, Geneva, Switzerland.
Jennifer EvansInternational Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, England, UK.ORCID http://orcid.org/0000-0002-6137-2030
Jacqueline RamkeSchool of Optometry and Vision Science, University of Auckland, Auckland, New Zealand.ORCID http://orcid.org/0000-0002-5764-1306

Funding

Wellcome TrustWorld Health Organization 001
6 · The paper itself

Abstract

introductionDiabetic retinopathy is one of the leading causes of vision impairment globally. Alongside the systemic control of diabetes and timely detection of diabetic retinopathy, the prompt initiation and completion of treatment is essential to prevent vision loss. Routine monitoring of access to retinal screening services for the detection of diabetic retinopathy is common, while monitoring of coverage of subsequent treatment services is far less common. When diabetic retinopathy treatment coverage is assessed, there is great variability in how it is defined and reported. If a definition of treatment coverage could be standardised, the monitoring of the quality of diabetes eye care could more readily be compared between settings and over time. The aim of this review is to summarise how diabetic retinopathy treatment coverage has been measured in published studies and the extent to which these have been disaggregated by population groups. METHODS AND ANALYSIS: A search will be conducted on Medline and Embase without any language restrictions, for cohort and cross-sectional studies published from 1 January 2015 that report diabetic retinopathy treatment coverage for adults with diabetic retinopathy and/or macular oedema. We will include studies from any world region reporting diabetic retinopathy treatment coverage for one or more of: (1) laser photocoagulation; (2) intravitreal injections of antivascular endothelial growth factor agents; (3) intravitreal injections of corticosteroids; (4) vitrectomy. The PROGRESS framework (place of residence, race/ethnicity/culture/language, occupation, gender/sex, religion, education, socioeconomic status and social capital) will be used to assess disaggregation by population groups. Two investigators will independently screen studies and extract relevant data. Data will be synthesised descriptively to outline the full range of definitions of diabetic retinopathy treatment coverage in the literature and identify the common sources of data used. ETHICS AND DISSEMINATION: This review will only include published data; thus, no ethical approval will be sought. The findings of this review will be published in a peer-reviewed journal and presented at relevant conferences. The findings will also be considered in conjunction with an ongoing review on retinal screening for diabetic retinopathy to develop indicators for monitoring of services along the diabetes eye care pathway, which may include an indicator of effective service coverage. REGISTRATION: Open Science Framework registration 6/08/2024: https://osf.io/5b93m.

Indexed as

Diabetic RetinopathyHealth Services AccessibilityHumansIntravitreal InjectionsLaser CoagulationResearch DesignVitrectomyDIABETES & ENDOCRINOLOGYDiabetic retinopathyOPHTHALMOLOGY

Identifiers

PMID40157726
PMCPMC11956272

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.