Evidence map›Paper›PMID 25537940›Full record

ArticleGlobal health action2014

Development and community-based validation of the IDEA study Instrumental Activities of Daily Living (IDEA-IADL) questionnaire.

Cecilia Collingwood, Stella-Maria Paddick, Aloyce Kisoli, Catherine L Dotchin, William K Gray, Godfrey Mbowe, Sarah Mkenda, Sarah Urasa, Declare Mushi, Paul Chaote and 1 more

Open access · goldAbstract readValidation Study
In one paragraph

Article in Global health action, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 24% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
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  10. Dementia prevalence and risk factors in people with and without HIV in Malawi: A medical record review.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  11. Review
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  15. Observational
  16. Review
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  18. Dementia in Africa: Current evidence, knowledge gaps, and future directions.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2022
    Review
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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

11 authors at 5 institutions in 3 countries.

Cecilia CollingwoodThe Medical School, Newcastle University, Newcastle upon Tyne, UK.
Stella-Maria PaddickNorthumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK; Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK; Stella-maria.paddick@ncl.ac.uk.
Aloyce KisoliHai District Medical Office, Hai, Tanzania.
Catherine L DotchinNorthumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK; Institute of Ageing, Newcastle University, Newcastle upon Tyne, UK.
William K GrayNorthumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK.
Godfrey MboweCommunity Health Department, Kilimanjaro Christian Medical University College, Moshi, Tanzania.
Sarah MkendaCommunity Health Department, Kilimanjaro Christian Medical University College, Moshi, Tanzania.
Sarah UrasaDepartment of Medicine, Kilimanjaro Christian Medical Centre, Moshi, Tanzania.
Declare MushiCommunity Health Department, Kilimanjaro Christian Medical University College, Moshi, Tanzania.
Paul ChaoteHai District Medical Office, Hai, Tanzania.
Richard W WalkerNorthumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK; Institute of Health and Society, Newcastle University, Newcastle upon Tyne, UK.
Kilimanjaro Christian Medical Centre · TZHoh Aeronautics (United States) · USNewcastle University · GBNorth Tyneside General Hospital · GBNorthumbria Healthcare NHS Foundation Trust · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe dementia diagnosis gap in sub-Saharan Africa (SSA) is large, partly due to difficulties in assessing function, an essential step in diagnosis.

objectivesAs part of the Identification and Intervention for Dementia in Elderly Africans (IDEA) study, to develop, pilot, and validate an Instrumental Activities of Daily Living (IADL) questionnaire for use in a rural Tanzanian population to assist in the identification of people with dementia alongside cognitive screening.

designThe questionnaire was developed at a workshop for rural primary healthcare workers, based on culturally appropriate roles and usual activities of elderly people in this community. It was piloted in 52 individuals under follow-up from a dementia prevalence study. Validation subsequently took place during a community dementia-screening programme. Construct validation against gold standard clinical dementia diagnosis using DSM-IV criteria was carried out on a stratified sample of the cohort and validity assessed using area under the receiver operating characteristic (AUROC) curve analysis.

resultsAn 11-item questionnaire (IDEA-IADL) was developed after pilot testing. During formal validation on 130 community-dwelling elderly people who presented for screening, the AUROC curve was 0.896 for DSM-IV dementia when used in isolation and 0.937 when used in conjunction with the IDEA cognitive screen, previously validated in Tanzania. The internal consistency was 0.959. Performance on the IDEA-IADL was not biased with regard to age, gender or education level.

conclusionsThe IDEA-IADL questionnaire appears to be a useful aid to dementia screening in this setting. Further validation in other healthcare settings in SSA is required.

Indexed as

Activities of Daily LivingSurveys and QuestionnairesAgedAged, 80 and overDementiaFemaleHomes for the AgedHumansMaleRegression AnalysisRural PopulationTanzaniaAfricadementiainstrumental activities of daily livingscreeningTanzaniavalidation

Identifiers

PMID25537940
PMCPMC4275650
OpenAlexW2089569832

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.