Evidence map›Paper›PMID 26338716›Full record

ArticleDementia and geriatric cognitive disorders2015

Performance of the 16-Item Informant Questionnaire on Cognitive Decline for the Elderly (IQCODE) in an Arabic-Speaking Older Population.

Thien Kieu Thi Phung, Monique Chaaya, Khalil Asmar, Samir Atweh, Husam Ghusn, Rose Mary Khoury, Martin Prince, Gunhild Waldemar

Open access · hybridAbstract readValidation Study
In one paragraph

Article in Dementia and geriatric cognitive disorders, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 3 pooled it
2.1field-weighted citation impact, top 14% 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

16 citing papers in PubMed, 3 syntheses or guidelines pooled it, 45 citations in OpenAlex.

  1. Cognitive assessment tools for Arabic-speaking older adults: A systematic review.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Pooled it
  2. Cognitive Screening Instruments for Older Adults with Low Educational and Literacy Levels: A Systematic Review.Journal of applied gerontology : the official journal of the Southern Gerontological Society · 2022
    Pooled it
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  15. Dementia prevalence, care arrangement, and access to care in Lebanon: A pilot study.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2017
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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 4 countries.

Thien Kieu Thi PhungDanish Dementia Research Center, Department of Neurology, Neuroscience Center, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
Monique Chaaya
Khalil Asmar
Samir Atweh
Husam Ghusn
Rose Mary Khoury
Martin Prince
Gunhild Waldemar
American University of Beirut · LBUniversity of Copenhagen · DKAmerican University of Beirut Medical Center · LBKing's College London · GBNeurology, Inc · US

Funding

Prevalence of Dementia in Lebanon: A Nationwide Community-Based Cohort StudyR21AG039333 · NIA · AMERICAN UNIVERSITY OF BEIRUT · PI CHAAYA, MONIQUE MAURICE, WALDEMAR, GUNHILD · 2011 to 2012
$244k
NIA NIH HHS 1R21AG039333-01NIA NIH HHS R21 AG039333
6 · The paper itself

Abstract

BACKGROUND/

aimThe North African and Middle Eastern region has high illiteracy rates among older people, making direct cognitive testing challenging. Validated screening instruments for dementia in Arabic are lacking. We aimed to validate the Arabic version of the 16-item Informant Questionnaire on Cognitive Decline for the Elderly (A-IQCODE 16) for screening for dementia through an informant.

methods236 Lebanese participants older than 65 years, 143 with normal cognition and 93 with mild-to-moderate dementia according to the DSM-IV criteria, and their informants were recruited. Half of the participants had no formal education. Interviewers blinded to the cognitive status of the participants administered the A-IQCODE 16 to the informants. The ability of the A-IQCODE 16 to screen for dementia was evaluated against the DSM-IV diagnoses.

resultsThe A-IQCODE 16 had excellent overall predictive power (area under the receiver operator characteristic curve = 0.96). A cutoff point of >3.34 yielded the best sensitivity (92.5%) and specificity (94.4%) for dementia screening. At this cutoff point, the discriminatory ability of the A-IQCODE 16 was comparable between participants with and those without formal education.

conclusionThe A-IQCODE 16 is not biased by education and is therefore useful as a brief screening tool for dementia among Arabic-speaking older adults with low education.

Indexed as

Psychiatric Status Rating ScalesSurveys and QuestionnairesAgedCase-Control StudiesCognitionDementiaHumansLebanonLiteracySensitivity and SpecificityTranslations

Identifiers

PMID26338716
PMCPMC5756546
OpenAlexW1835038599

What OpenQuestion holds

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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.