Normative data for healthy adult performance on the Egyptian-Arabic Addenbrooke's Cognitive Examination III

The Addenbrooke's Cognitive Examination III (ACE-III) (2012) is a brief cognitive battery that assesses various aspects of cognition. Its five subdomains (attention and orientation, memory, verbal fluency, language and visuospatial abilities) are commonly impaired in Alzheimer's disease and frontotemporal dementia. OBJECTIVE: The aim of the study was to provide normative data for healthy adult performance on Egyptian-Arabic ACE-III. PARTICIPANTS AND METHODS: We adapted the ACE-III (2012) to the Egyptian population. We evaluated this version on 139 cognitively healthy volunteers aged 20 years or older (54.7% male and 45.3% female). We stratified the participants both by age (<60 years and >60 years) and by degree of education (basic, secondary or university education). None of the participants had any complaints of cognitive decline. RESULTS: We established normative data for healthy Egyptian adults below 60 years and above 60 years on each of the subdomains of the ACE-III. The data generated from the performance was assigned according to percentiles. We found a significant difference (P<0.001) between the performance of older and younger adults on the category task of the verbal fluency test. CONCLUSION: By adapting the ACE-III to the Egyptian-Arabic population, we were able to establish normative data for healthy Egyptian adults.