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

Paddick, Stella-Maria; Gray, William K.; Ogunjimi, Luqman; Lwezuala, Bingileki; Olakehinde, Olaide; Kisoli, Aloyce; Kissima, John; Mbowe, Godfrey; Mkenda, Sarah; Dotchin, Catherine; Walker, Richard; Mushi, Declare; Collingwood, Cecilia; Ogunniyi, Adesola

doi:10.1186/s12877-015-0040-1

Cited by 47 publications

(83 citation statements)

References 21 publications

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“…; Paddick et al. ). It tested 10‐word learning (repeated three times), orientation, verbal fluency, abstract reasoning, delayed recall and praxis.…”

Section: Methodsmentioning

confidence: 97%

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Prevalence estimates of major neurocognitive disorders in a rural Nigerian community

et al. 2016

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ObjectiveThere is paucity of information on major neurocognitive disorders in sub‐Saharan Africa where the number of individuals with neurocognitive disorders is expected to increase due to demographic transition. This study aims to report on the prevalence estimates of dementia and MCI (mild cognitive impairment) in a rural community in southwest Nigeria.Materials and MethodsThis was a two‐stage cross‐sectional study of persons aged 65 years and above resident in Lalupon community, Oyo State. The Identification and IDEA (Intervention for Dementia in Elderly Africans) Study Questionnaire was used for initial screening by trained community health care workers, utilized followed by cognitive assessment using the validated IDEA cognitive screen. Functional and cognitive assessment of selected individuals was carried out during the second stage. Information obtained was used for consensus diagnosis and participants were categorized into normal, MCI and dementia using standard criteria.ResultsSix hundred and thirteen participants completed the study with 111 (18.1%) diagnosed as MCI while 17 (2.8%) had dementia. The age‐adjusted prevalence estimates were 18.4% (95% CI: 14.9–21.9%) and 2.9% (95% CI 1.6–4.4%) for MCI and dementia, respectively. Probable Alzheimer's disease and amnestic MCI predominated. Individuals with dementia were older than both MCI and normal cases while those with MCI had significantly fewer years of schooling than the other diagnostic categories.ConclusionAlmost one out of five older persons in Lalupon community had major neurocognitive impairment with MCI being six‐times more common than dementia. Alzheimer's disease was the most common dementia sub‐type.

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“…; Paddick et al. ). It tested 10‐word learning (repeated three times), orientation, verbal fluency, abstract reasoning, delayed recall and praxis.…”

Section: Methodsmentioning

confidence: 97%

“…The details of the validation have been published elsewhere (Paddick et al. ). Brief examination for limb paralysis, involuntary movements, gait abnormality, visual and hearing impairment was carried out on all study participants.…”

Section: Methodsmentioning

confidence: 99%

Prevalence estimates of major neurocognitive disorders in a rural Nigerian community

et al. 2016

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“…The screen has 6 items and takes 10‐15 minutes to administer. It has been validated for use in this setting . A score of ≤ 7 is the recognised cutoff for probable dementia.…”

Section: Methodsmentioning

confidence: 99%

Hypertension in a resource‐limited setting: Is it associated with end organ damage in older adults in rural Tanzania?

Putnam

Jones

Rogathi

et al. 2018

J of Clinical Hypertension

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Few data from sub‐Saharan Africa exist on the effects of hypertension on the organs of the human body. We aimed to establish the prevalence of hypertensive end organ damage (EOD) in an elderly cohort of Tanzanians. The population aged 70 years and over of 2 villages in northern Tanzania (n = 246), had blood pressure (BP) data available from 2010 and 2013, and underwent in‐depth follow‐up for markers of hypertensive EOD in 2016. Assessment included ankle‐brachial pressure index, lying‐standing BP, electrocardiogram, and mid‐stream urine dip. Sustained hypertension (those with hypertension at all 3 assessments) was found in 129 (52.4% subjects). Of the entire cohort, 13.9% had left ventricular hypertrophy and 26.4% had peripheral arterial disease, both of which were associated with sustained hypertension, although orthostatic hypotension, stroke, proteinuria, and arterial stiffening were not. Further investigation, particularly in younger age groups, is merited if hypertension‐associated morbidity is to be controlled.

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“…To address concerns associated with cultural, literacy, and educational bias, several new cognitive instruments have been specifically developed and validated in different LMICs from the Middle East, Africa, and South‐East Asia including (1) The Dementia Screening Battery 100 (DES‐100, Tunisia), (2) The NIMHANS Neuropsychological Battery for Elderly (NNB‐E, India), (3) The Dementia Assessment by Rapid Test (DART, India), (4) The Cognitive State Test (COST, Turkey), (5) The Identification and Intervention for Dementia in Elderly Africans (IDEA, Sub‐Saharan Africa including Tanzania and Nigeria), and (6) The Early Dementia Questionnaire (EDQ, Malaysia) . Some of the domains assessed by these tests include orientation, memory, language, concentration, verbal fluency, attention, executive function, and praxis.…”

Section: Instruments To Assess Cognition Developed Specifically For Lmentioning

confidence: 99%

Current approaches to dementia screening and case finding in low‐ and middle‐income countries: Research update and recommendations

Magklara

Stephan

Robinson

2018

Int J Geriat Psychiatry

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Approximately 47 million people have dementia worldwide, with this figure, it is expected to almost triple by 2050. Most people with dementia (approximately two‐thirds) live in low‐ and middle‐income countries (LMICs). This presents a significant challenge for such countries that often have limited financial resources and less well‐developed health and social care systems. In the absence of a cure, reducing the future costs of dementia care and burden of disease may be best achieved by a greater emphasis on (1) more timely diagnosis with earlier intervention to maintain functional independence and (2) undertaking “screening” in groups at high risk of developing dementia, case finding, and using brief cognitive assessment instruments. In clinical settings, a wide range of instruments for dementia screening and diagnosis are currently available; however, few cognitive assessment tools have been developed specifically for clinical use within LMIC settings. Screening for dementia and cognitive impairment in LMICs largely relies on tools adapted from high‐income countries (HICs); these often lack validation in these settings leading to education, literacy, and cultural biases. Research is urgently needed to develop cognitive assessment tools and dementia diagnostic approaches that are appropriate and feasible for clinical use in LMIC settings.

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

Cited by 47 publications

References 21 publications

Prevalence estimates of major neurocognitive disorders in a rural Nigerian community

Prevalence estimates of major neurocognitive disorders in a rural Nigerian community

Hypertension in a resource‐limited setting: Is it associated with end organ damage in older adults in rural Tanzania?

Current approaches to dementia screening and case finding in low‐ and middle‐income countries: Research update and recommendations

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