Evidence map›Paper›PMID 35068460›Full record

ArticleJournal of Alzheimer's disease : JAD2022

Diabetic Retinopathy Predicts Risk of Alzheimer's Disease: A Danish Registry-Based Nationwide Cohort Study.

Frederik Nørregaard Pedersen, Lonny Stokholm, Frans Pouwer, Katrine Hass Rubin, Tunde Peto, Ulrik Frydkjær-Olsen, Anne Suhr Thykjær, Nis Andersen, Jens Andresen, Toke Bek and 10 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
2.9field-weighted citation impact, top 9% 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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Diabetic retinopathy and Alzheimer's disease: Convergence of the unfolded protein response in neurodegeneration.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Potential Retinal Biomarkers in Alzheimer's Disease.International journal of molecular sciences · 2023
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
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

20 authors at 10 institutions in 3 countries.

Frederik Nørregaard PedersenDepartment of Ophthalmology, Odense University Hospital, Odense, Denmark.
Lonny StokholmDepartment of Clinical Research, University of Southern Denmark, Odense, Denmark.
Frans PouwerSteno Diabetes Center Odense, Odense University Hospital, Odense, Denmark.
Katrine Hass RubinDepartment of Clinical Research, University of Southern Denmark, Odense, Denmark.
Tunde PetoDepartment of Clinical Research, University of Southern Denmark, Odense, Denmark.
Ulrik Frydkjær-OlsenDepartment of Ophthalmology, Lillebaelt Hospital, Vejle, Denmark.
Anne Suhr ThykjærDepartment of Ophthalmology, Odense University Hospital, Odense, Denmark.
Nis AndersenOrganization of Danish Practicing Ophthalmologists, Copenhagen, Denmark.
Jens AndresenOrganization of Danish Practicing Ophthalmologists, Copenhagen, Denmark.
Toke BekDepartment of Ophthalmology, Aarhus University Hospital, Aarhus, Denmark.
Morten La CourDepartment of Ophthalmology, Rigshospitalet-Glostrup, Copenhagen, Denmark.
Steffen HeegaardDepartment of Ophthalmology, Rigshospitalet-Glostrup, Copenhagen, Denmark.
Kurt HøjlundDepartment of Clinical Research, University of Southern Denmark, Odense, Denmark.
Ryo KawasakiDepartment of Clinical Research, University of Southern Denmark, Odense, Denmark.
Javad Nouri HajariDepartment of Ophthalmology, Rigshospitalet-Glostrup, Copenhagen, Denmark.
Kirsten Ohm KyvikDepartment of Clinical Research, University of Southern Denmark, Odense, Denmark.
Caroline Schmidt LaugesenDepartment of Ophthalmology, Zealand University Hospital Roskilde, Roskilde, Denmark.
Katja Christina SchielkeDepartment of Ophthalmology, Aalborg University Hospital, Aalborg, Denmark.
Rafael SimóDepartment of Endocrinology, Hospital Universitari Vall d'Hebron, Vall d'Hebron Research Institut (VHIR) and CIBERDEM (ISCIII), Barcelona, Spain.
Jakob GrauslundDepartment of Ophthalmology, Odense University Hospital, Odense, Denmark.
University of Southern Denmark · DKSteno Diabetes Centers · DKUniversity of Copenhagen · DKAalborg University Hospital · DKAarhus University Hospital · DKInstituto de Salud Carlos III · ESLillebaelt Hospital · DKQueen's University Belfast · GBRigshospitalet · DKZealand University Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRetinal neurodegeneration is evident in early diabetic retinopathy (DR) which may be associated with other neurodegenerative diseases like Alzheimer's disease (AD).

objectiveTo investigate diabetes and DR as a risk marker of present and incident AD.

methodsA register-based cohort study was performed. We included 134,327 persons with diabetes above 60 years of age, who had attended DR screening, and 651,936 age- and gender-matched persons without diabetes.

resultsAt baseline, the prevalence of AD was 0.7% and 1.3% among patients with and without diabetes, respectively. In a multivariable regression model, patients with diabetes were less likely to have AD at baseline (adjusted OR 0.63, 95% CI 0.59-0.68). During follow-up, incident AD was registered for 1473 (0.35%) and 6,899 (0.34%) persons with and without diabetes, respectively. Compared to persons without diabetes, persons with diabetes and no DR had a lower risk to develop AD (adjusted HR 0.87, 95% CI 0.81-0.93), while persons with diabetes and DR had higher risk of AD (adjusted HR 1.24, 95% CI 1.08-1.43). When persons with diabetes and no DR were used as references, a higher risk of incident AD was observed in persons with DR (adjusted HR 1.34, 95% CI 1.18-1.53).

conclusionIndividuals with diabetes without DR were less likely to develop AD compared to persons without diabetes. However, individuals with DR had a 34% higher risk of incident AD, which raise the question whether screening for cognitive impairment should be done among individuals with DR.

Indexed as

Alzheimer DiseaseDiabetes MellitusDiabetic RetinopathyCohort StudiesDenmarkHumansRegistriesRisk FactorsAlzheimer’s diseasecognitive impairmentdiabetes mellitusdiabetic retinopathy

Identifiers

PMID35068460
PMCPMC9028615
OpenAlexW4206975332

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.