Validation of the Identification and Intervention for Dementia in Elderly Africans (IDEA) cognitive screen in Nigeria and Tanzania

BMC Geriatrics

Research Article

Aloyce Kisoli¹  John Kissima¹  Godfrey Mbowe²  Sarah Mkenda²  Declare Mushi²  Bingileki lwezuala³  William K Gray⁴  Catherine L Dotchin⁵  Richard W Walker⁶  Stella-Maria Paddick⁷  Cecilia Collingwood⁸  Luqman Ogunjimi⁹  Adesola Ogunniyi⁹  Olaide Olakehinde⁹ 

[1] Hai District Hospital, Boman’gombe, Kilimanjaro, Tanzania;Kilimanjaro Christian Medical University College, Moshi, Tanzania;Mawenzi Regional Hospital, Moshi, Tanzania;Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK;Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK;Institute for Ageing, Newcastle University, Newcastle upon Tyne, UK;Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK;Institute of Health and Society, Newcastle University, Newcastle upon Tyne, UK;Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK;Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK;The Medical School, Newcastle University, Newcastle upon Tyne, UK;University College Hospital, University of Ibadan, Ibadan, Nigeria;

关键词: Dementia;    Delirium;    Screening;    Nigeria;    Tanzania;    Africa;    Validation;   

DOI  :  10.1186/s12877-015-0040-1

 received in 2014-10-23, accepted in 2015-03-25,  发布年份 2015

来源: Springer

【 摘 要 】

BackgroundWe have previously described the development of the Identification and Intervention for Dementia in Elderly Africans (IDEA) cognitive screen for use in populations with low levels of formal education. The IDEA cognitive screen was developed and field-tested in an elderly, community-based population in rural Tanzania with a relatively high prevalence of cognitive impairment. The aim of this study was to validate the IDEA cognitive screen as an assessment of major cognitive impairment in hospital settings in Nigeria and Tanzania.MethodsIn Nigeria, 121 consecutive elderly medical clinic outpatients reviewed at the University College Hospital, Ibadan were screened using the IDEA cognitive screen. In Tanzania, 97 consecutive inpatients admitted to Mawenzi Regional Hospital (MRH), Moshi, and 108 consecutive medical clinic outpatients attending the geriatric medicine clinic at MRH were screened. Inter-rater reliability was assessed in Tanzanian outpatients attending St Joseph’s Hospital in Moshi using three raters. A diagnosis of dementia or delirium (DSM-IV criteria) was classified as major cognitive impairment and was provided independently by a physician blinded to the results of the screening assessment.ResultsThe area under the receiver operating characteristic (AUROC) curve in Nigerian outpatients, Tanzanian outpatients and Tanzanian inpatients was 0.990, 0.919 and 0.917 respectively. Inter-rater reliability was good (intra-class correlation coefficient 0.742 to 0.791). In regression models, the cognitive screen did not appear to be educationally biased.ConclusionsThe IDEA cognitive screen performed well in these populations and should prove useful in screening for dementia and delirium in other areas of sub-Saharan Africa.

【 授权许可】

Unknown   
© Paddick et al. 2015. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.