Evidence map›Paper›PMID 34708768›Full record

ArticleIndian journal of ophthalmology2021

Impact of age-related macular degeneration on diabetic retinopathy: An electronic health record based big data analysis from a tertiary eye centre in South India.

Niroj K Sahoo, Mehul C Mehta, Padmaja K Rani, Rohit C Khanna, Rajiv Raman, Jayanta Bhattacharya, Anthony V Das, Gudlavalleti V S Murthy, Raja Narayanan

Open access · diamondAbstract read
In one paragraph

Article in Indian journal of ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 23% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. Association between diabetic retinopathy and age-related macular degeneration: a systematic review and meta-analysis.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
    Pooled it
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 3 countries.

Niroj K SahooIndian Health Outcomes, Public Health and Economics Research (IHOPE) Centre, Smt. Kanuri Santhamma, Centre for Vitreo-Retinal Diseases, L V Prasad Eye Institute, Vijayawada, Andhra Pradesh, India.
Mehul C MehtaDepartment of Vitreo-retina, L VPrasad Eye Institute, Vijayawada, Andhra Pradesh, India.
Padmaja K RaniIndian Health Outcomes, Public Health and Economics Research (IHOPE) Centre, Smt. Kanuri Santhamma Centre for Vitreo-Retinal Diseases, L V Prasad Eye Institute, Hyderabad, Telangana, India.
Rohit C KhannaIndian Health Outcomes, Public Health and Economics Research (IHOPE) Centre, Smt. Kanuri Santhamma Centre for Vitreo-Retinal Diseases, L V Prasad Eye Institute, Hyderabad, Telangana, India.
Rajiv RamanIndian Health Outcomes, Public Health and Economics Research (IHOPE) Centre, Shri Bhagwan Mahavir Vitreoretinal Services, Sankara Nethralaya, Chennai, Tamil Nadu, India.
Jayanta BhattacharyaIndian Health Outcomes, Public Health and Economics Research (IHOPE) Centre, Department of Medicine, Center for Primary Care and Outcomes Research, Stanford University, USA.
Anthony V DasIndian Health Outcomes, Public Health and Economics Research (IHOPE) Centre, Smt. Kanuri Santhamma Centre for Vitreo-Retinal Diseases, L V Prasad Eye Institute, Hyderabad, Telangana, India.
Gudlavalleti V S MurthyIndian Health Outcomes, Public Health and Economics Research (IHOPE) Centre, Indian Institute of Public Health Hyderabad, Public Health Foundation of India, Hyderabad, Telangana, India.
Raja NarayananIndian Health Outcomes, Public Health and Economics Research (IHOPE) Centre, Smt. Kanuri Santhamma Centre for Vitreo-Retinal Diseases, L V Prasad Eye Institute, Hyderabad, Telangana, India.
L V Prasad Eye Institute · INSankara Nethralaya · IN

Funding

DBT-Wellcome Trust India Alliance IA/CRC/19/1/610010
6 · The paper itself

Abstract

purposeTo determine whether the presence of age-related macular degeneration (AMD) decreases the risk of diabetic retinopathy.

methodsThis was a retrospective, case-cohort study performed in patients with a systemic diagnosis of diabetes at a tertiary health care center from May 2011 to April 2020. A total of 43,153 patients (1,024 AMD patients and 42,129 non-AMD patients) were included in the analysis. A total of 1,024 age and diabetes mellitus (DM) duration-matched controls were chosen from the non-AMD group for risk factor analysis. The severity of diabetic retinopathy was compared between the patients with AMD and the patients without AMD.

resultsOut of the enrolled 43,153 diabetic patients, 26,906 were males and 16,247 were females. A total of 1,024 patients had AMD and 42,129 had no AMD. The mean age of the cohort was 58.60 ± 0.09 years. The overall prevalence of DR was noted to be 22.8% (9,825 out of 43,153 eyes). A significantly lower prevalence of diabetic retinopathy (DR) (23% in non-AMD, 11.4% in AMD, OR = -0.43, P < 0.001), non-proliferative diabetic retinopathy (NPDR) (12% in non-AMD, 8.2% in AMD, OR = -0.66, P < 0.001), and proliferative diabetic retinopathy (PDR) (11% in non-AMD, 3.2% in AMD, OR = -0.27, P < 0.001) was seen in the AMD patients. No significant difference was seen between the dry and wet AMD. On multivariate logistic regression analysis, the lower age, absence of AMD, and male gender were associated with a higher risk of PDR.

conclusionThe presence of AMD was noted to statistically reduce the risk of DR. Our results may be useful in the field of resource allocation and awareness of DR.

Indexed as

Diabetes Mellitus, Type 2Diabetic RetinopathyMacular DegenerationCohort StudiesData AnalysisElectronic Health RecordsFemaleHumansIndiaMaleMiddle AgedRetrospective StudiesAge-related macular degenerationAMDdiabetic retinopathyDR

Identifiers

PMID34708768
PMCPMC8725103
OpenAlexW3210079645

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.