Evidence map›Paper›PMID 32499618›Full record

ArticleScientific reports2020

Low vision and the risk of dementia: a nationwide population-based cohort study.

Ji-Sun Paik, Minji Ha, Youn Hea Jung, Gee-Hyun Kim, Kyung-Do Han, Hyun-Seung Kim, Dong Hui Lim, Kyung-Sun Na

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 4% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.

  1. Pooled it
  2. Article
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  5. [Vision loss, cognitive decline and dementia-A narrative review article].Zeitschrift fur Gerontologie und Geriatrie · 2025
    Review
  6. Observational
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  10. Observational
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  20. Visual Impairment and Risk of Dementia in 2 Population-Based Prospective Cohorts: UK Biobank and EPIC-Norfolk.The journals of gerontology. Series A, Biological sciences and medical sciences · 2022
    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

8 authors at 3 institutions in 1 country.

Ji-Sun PaikDepartment Department of Ophthalmology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
Minji HaDepartment Department of Ophthalmology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
Youn Hea JungDepartment Department of Ophthalmology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
Gee-Hyun KimDepartment Department of Ophthalmology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
Kyung-Do HanDepartment of Statistics and Actuarial Science, Soongsil University, Seoul, Republic of Korea.
Hyun-Seung KimDepartment Department of Ophthalmology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.ORCID http://orcid.org/0000-0001-6825-8612
Dong Hui LimDepartment of Ophthalmology, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea. ldhlse@gmail.com.
Kyung-Sun NaDepartment Department of Ophthalmology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea. drna@catholic.ac.kr.
Catholic University of Korea · KRSamsung Medical Center · KRSoongsil University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent studies suggested that an association exists between vision loss and cognitive impairment, although it is still vague whether there are causal relationships or direct association between low vision and dementia. We were to investigate the association between low vision and dementia in the Korean population using the National Health Insurance Service (NHIS) database. We analyzed the data of 6,029,657 subjects aged ≥40 years, drawn from Korea National Health Insurance Service. The hazard ratio (HRs) and 95% confidence interval (CIs) of dementia, Alzheimer's disease (AD), and Vascular dementia (VD) were estimated using multivariable Cox proportional hazards regression models. Statistical analysis showed that subjects with more severe visual impairments have a higher risk of dementia, AD, and VD after adjusting for compounding variables. The HRs of dementia increased significantly as visual acuity worsened (HRs 1.444 [95% CIs 1.415-1.473] for visual acuity (VA) < 1.0, 1.734 [1.693-1.777] for VA < 0.3, 1.727 [1.686-1.770] for VA < 0.1 and 1.991[1.902-2.085] for visual loss). Baseline visual loss and visual impairment were positively associated with the risk of dementia, AD, and VD. From the results of this nationwide population-based cohort study, we suggest that there is a significant increase in the incidence of dementia in subjects with low vision.

Indexed as

AdultAgedAged, 80 and overAlzheimer DiseaseCohort StudiesDatabases, FactualDementiaDementia, VascularFemaleHumansIncidenceMaleMiddle AgedRepublic of KoreaRiskSeverity of Illness Index

Identifiers

PMID32499618
PMCPMC7272467
OpenAlexW3033542549

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.