Abstract
The aim of this study was to provide normative data of the Moroccan Arabic version of the 10/66 Dementia Research Group cognitive test battery and to explore the effects of age, education/illiteracy, and gender on the performance of these tests. One hundred healthy subjects (67 illiterates and 33 semi-illiterates) participated in this study. None of the participants had serious medical, psychiatric, or neurological disorders including dementia. The protocol included the administration of three components of the 10/66 Dementia Research Group cognitive test battery; Community Screening Instrument for Dementia (CSI “D”, generating the COGSCORE measure of global function), and the Consortium to Establish a Registry for Alzheimer’s Disease (CERAD) verbal fluency (VF), word list memory (WLM, immediate recall) tests. All the test scores were not significantly influenced by sex and age. There was no significant effect of education/illiteracy on the CERAD verbal fluency (VF) and Word List Memory (immediate recall) test scores, but a weakly significant (p < 0.05) effect on the CSI “D” COGSCORE performance. These normative data will be useful for clinical interpretations of the three components of the 10/66 Dementia Research Program protocol in illiterate and semi-illiterate Moroccan subjects with cognitive disorders.
Highlights
Around the world, there will be one new case of dementia every 3 seconds; 50 million people worldwide are living with dementia in 2018
The protocol included the administration of three components of the 10/66 Dementia Research Group cognitive test battery; Community Screening Instrument for Dementia (CSI “D”, generating the COGSCORE measure of global function), and the Consortium to Establish a Registry for Alzheimer’s Disease (CERAD) verbal fluency (VF), word list memory (WLM, immediate recall) tests
The results of the present study suggest that the cognitive functions assessed by the 10/66 cognitive test battery gradually decline with advancing age, but not significantly
Summary
There will be one new case of dementia every 3 seconds; 50 million people worldwide are living with dementia in 2018. This number will more than triple to 152 million by 2050 [1]. The Office of the High Commissioner for the Plan of Morocco estimates that the population of older people increased more than three and a half times between 1960 and 2014, from 836,000 to 3,200,000 [6]. Its rate in the total population passed from 4.8% in 1980 to 12.7% in 2018 This rate is predicted to rise more rapidly to 26.5% in 2050 [7] [8] [9]
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