Evidence map›Paper›PMID 23561025›Full record

ArticleGlobal health action2013

Dementia prevalence estimates in sub-Saharan Africa: comparison of two diagnostic criteria.

Stella-Maria Paddick, Anna R Longdon, Aloyce Kisoli, Catherine Dotchin, William K Gray, Felicity Dewhurst, Paul Chaote, Raj Kalaria, Ahmed M Jusabani, Richard Walker

Open access · goldAbstract readComparative Study
In one paragraph

Article in Global health action, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 69 citations in OpenAlex.

  1. Pooled it
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  7. Review
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  11. Prevalence of suspected dementia in a sample of adults living in Kinshasa-Democratic Republic of the Congo.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2023
    Article
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  14. Review
  15. Article
  16. Long-term consumption of virgin coconut (Chinese herbal medicines · 2020
    Article
  17. Article
  18. Review
  19. A review of the 10/66 dementia research group.Social psychiatry and psychiatric epidemiology · 2019
    Review
  20. 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

10 authors at 6 institutions in 2 countries.

Stella-Maria PaddickInstitute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK.
Anna R Longdon
Aloyce Kisoli
Catherine Dotchin
William K Gray
Felicity Dewhurst
Paul Chaote
Raj Kalaria
Ahmed M Jusabani
Richard Walker
North Tyneside General Hospital · GBKilimanjaro Christian Medical Centre · TZNewcastle Hospitals - Campus for Ageing and Vitality · GBNewcastle University · GBNorthumbria Healthcare NHS Foundation Trust · GBTorbay and South Devon NHS Foundation Trust · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe have previously reported the prevalence of dementia in older adults living in the rural Hai district of Tanzania according to the Diagnostic and Statistical Manual of Mental Disorders, 4th edition (DSM-IV) criteria. The aim of this study was to compare prevalence rates using the DSM-IV criteria with those obtained using the 10/66 diagnostic criteria, which is specifically designed for use in low- and middle-income countries.

methodsIn phase I, 1,198 people aged 70 and older were screened for dementia. A stratified sample of 296 was then clinically assessed for dementia according to the DSM-IV criteria. In addition, data were collected according to the protocol of the 10/66 Dementia Research Group, which allowed a separate diagnosis of dementia according to these criteria to be established.

resultsThe age-standardised prevalence of clinical DSM-IV dementia was 6.4% (95% confidence interval [CI] 4.9-7.9%) and of '10/66 dementia' was 21.6% (95% CI 17.5-25.7%). Education was a significant predictor of '10/66 dementia', but not of DSM-IV dementia.

conclusionsThere are large discrepancies in dementia prevalence rates depending on which diagnostic system is used. In rural sub-Saharan Africa, it is not clear whether the association between education and dementia using the 10/66 criteria is a genuine effect or the result of an educational bias within the diagnostic instrument. Despite its possible flaws, the DSM-IV criteria represent an international standard for dementia diagnosis. The 10/66 diagnostic criteria may be more appropriate when identification of early and mild cognitive impairment is required.

Indexed as

AgedAged, 80 and overCognition DisordersDementiaDiagnosis, DifferentialDiagnostic and Statistical Manual of Mental DisordersEducational StatusFemaleHumansMalePrevalenceTanzaniaAfricadementiadiagnosisTanzania

Identifiers

PMID23561025
PMCPMC3617645
OpenAlexW2149771324

What OpenQuestion holds

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LicenceCC BY
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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.