Evidence map›Paper›PMID 35831178›Full record

ArticleNeurology2022

Nonalcoholic Fatty Liver Disease and Risk of Dementia: A Population-Based Cohort Study.

Ying Shang, Linnea Widman, Hannes Hagström

Open access · bronzeAbstract read
In one paragraph

Article in Neurology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 2 pooled it
14.2field-weighted citation impact, top 1% 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

48 citing papers in PubMed, 2 syntheses or guidelines pooled it, 77 citations in OpenAlex.

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  10. Mechanistic insights into the liver-brain axis during chronic liver disease.Nature reviews. Gastroenterology & hepatology · 2026
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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

3 authors at 1 institution in 1 country.

Ying ShangFrom the Department of Medicine (Y.S., H.H.), Huddinge, Karolinska Institutet; Division of Biostatistics (L.W.), Institute of Environmental Medicine, Karolinska Institutet; Division of Hepatology (H.H.), Department of Upper GI, Karolinska University Hospital; and Clinical Epidemiology Unit (H.H.), Department of Medicine, Karolinska Institutet, Stockholm, Sweden. ying.shang@ki.se.ORCID 0000-0002-1496-1799
Linnea WidmanFrom the Department of Medicine (Y.S., H.H.), Huddinge, Karolinska Institutet; Division of Biostatistics (L.W.), Institute of Environmental Medicine, Karolinska Institutet; Division of Hepatology (H.H.), Department of Upper GI, Karolinska University Hospital; and Clinical Epidemiology Unit (H.H.), Department of Medicine, Karolinska Institutet, Stockholm, Sweden.ORCID 0000-0003-4851-0256
Hannes HagströmFrom the Department of Medicine (Y.S., H.H.), Huddinge, Karolinska Institutet; Division of Biostatistics (L.W.), Institute of Environmental Medicine, Karolinska Institutet; Division of Hepatology (H.H.), Department of Upper GI, Karolinska University Hospital; and Clinical Epidemiology Unit (H.H.), Department of Medicine, Karolinska Institutet, Stockholm, Sweden.ORCID 0000-0002-8474-1759
Karolinska University Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesNonalcoholic fatty liver disease (NAFLD) and dementia share common risk factors including metabolic disorders. However, whether NAFLD is associated with dementia risk is unclear. We investigated the association between NAFLD and dementia risk as well as the role of cardiovascular complications including heart disease and stroke.

methodsIn this population-based matched cohort study, we identified all Swedish patients aged 65 years or older with NAFLD identified from the National Patient Register (NPR) between 1987 and 2016. These were matched with up to 10 reference individuals from the general population on age, sex, and municipality at the year of diagnosis. Incident dementia diagnosis was derived from the NPR or the Cause of Death Register until 2016. Adjusted hazard ratios (aHRs) and 95% CIs were estimated with Cox regression models.

resultsA total of 2,898 patients with NAFLD and 28,357 matched controls were identified (median age at entry, interquartile range [IQR], 70 [8]; 55.1% female). During a median follow-up of 5.5 years (IQR: 8.5 years), 145 (5.0%) patients with NAFLD and 1,291 (4.6%) reference individuals were diagnosed with dementia. Compared with the reference individuals, patients with NAFLD had higher rates of dementia (aHR 1.38, 95% CI 1.10-1.72) and vascular dementia (aHR 1.44, 95% CI 0.96-2.23, DISCUSSION: NAFLD had a modest association with increased rates of dementia. This was stronger among patients with NAFLD diagnosed with cardiovascular comorbidities. CLASSIFICATION OF EVIDENCE: This study provides Class II evidence that nonalcoholic fatty liver disease is associated with the development of vascular and nonvascular dementia.

Indexed as

Dementia, VascularHeart DiseasesNon-alcoholic Fatty Liver DiseaseStrokeCohort StudiesFemaleHumansMaleRisk Factors

Identifiers

PMID35831178
PMCPMC9442617
OpenAlexW4285391459

What OpenQuestion holds

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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.