Evidence map›Paper›PMID 35440451›Full record

SynthesisBMJ open2022

Is carotid artery atherosclerosis associated with poor cognitive function assessed using the Mini-Mental State Examination? A systematic review and meta-analysis.

Rayan Anbar, Salahaden R Sultan, Lamia Al Saikhan, Mohammed Alkharaiji, Nishi Chaturvedi, Rebecca Hardy, Marcus Richards, Alun Hughes

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMJ open, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 2 pooled it
1.5field-weighted citation impact, top 17% 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

9 citing papers in PubMed, 2 syntheses or guidelines pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
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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

8 authors at 5 institutions in 2 countries.

Rayan AnbarDiagnostic Radiology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Makkah, Saudi Arabia.ORCID 0000-0002-1198-4231
Salahaden R SultanDiagnostic Radiology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Makkah, Saudi Arabia.ORCID 0000-0001-9981-6138
Lamia Al SaikhanCollege of Applied Medial Sciences, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.ORCID 0000-0002-9951-8832
Mohammed AlkharaijiDepartment of Public Health, Saudi Electronic University, Riyadh, Saudi Arabia.ORCID 0000-0002-8135-0939
Nishi ChaturvediMRC Unit for Lifelong Health and Aging, UCL Institute of Cardiovascular Science, University College London, London, UK.
Rebecca HardySocial Research Institute, UCL Institute of Education, University College London, London, UK.
Marcus RichardsMRC Unit for Lifelong Health and Aging, UCL Institute of Cardiovascular Science, University College London, London, UK.
Alun HughesMRC Unit for Lifelong Health and Aging, UCL Institute of Cardiovascular Science, University College London, London, UK alun.hughes@ucl.ac.uk.ORCID 0000-0001-5432-5271
MRC Unit for Lifelong Health and Ageing · GBKing Abdulaziz University · SAImam Abdulrahman Bin Faisal University · SASaudi Electronic University · SAUniversity College London · GB

Funding

British Heart Foundation PG/17/90/33415Medical Research Council MC_UU_00019/1Medical Research Council MC_UU_00019/2Medical Research Council MC_UU_00019/3Medical Research Council MC_UU_12019/1
6 · The paper itself

Abstract

objectivesTo determine associations between carotid atherosclerosis assessed by ultrasound and the Mini-Mental State Examination (MMSE), a measure of global cognitive function.

designSystematic review and meta-analysis.

methodsMEDLINE and EMBASE databases were searched up to 1 May 2020 to identify studies assessed the associations between asymptomatic carotid atherosclerosis and the MMSE. Studies reporting OR for associations between carotid plaque or intima-media thickness (cIMT) and dichotomised MMSE were meta-analysed. Publication bias of included studies was assessed.

resultsA total of 31 of 378 reviewed articles met the inclusion criteria; together they included 27 738 participants (age 35-95 years). Fifteen studies reported some evidence of a positive association between measures of atherosclerosis and poorer cognitive performance in either cross-sectional or longitudinal studies. The remaining 16 studies found no evidence of an association. Seven cross-sectional studies provided data suitable for meta-analysis. Meta-analysis of three studies that assessed carotid plaque (n=3549) showed an association between the presence of plaque and impaired MMSE with pooled estimate for the OR (95% CI) being 2.72 (0.85 to 4.59). An association between cIMT and impaired MMSE was reported in six studies (n=4443) with a pooled estimate for the OR (95% CI) being 1.13 (1.04 to 1.22). Heterogeneity across studies was moderate to small (carotid plaque with MMSE, I

conclusionsThere is some, limited cross-sectional evidence indicating an association between cIMT and poorer global cognitive function assessed with MMSE. Estimates of the association between plaques and poor cognition are too imprecise to draw firm conclusions and evidence from studies of longitudinal associations between carotid atherosclerosis and MMSE is limited. PROSPERO REGISTRATION NUMBER: CRD42021240077.

Indexed as

AtherosclerosisCarotid Artery DiseasesPlaque, AtheroscleroticAdultAgedAged, 80 and overCarotid ArteriesCarotid Intima-Media ThicknessCognitionCross-Sectional StudiesHumansMiddle AgedRisk FactorsCardiovascular imagingDementiaUltrasoundVASCULAR MEDICINE

Identifiers

PMID35440451
PMCPMC9020283
OpenAlexW4224219540

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.