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Introduction: The Addenbrooke's Cognitive Examination III (ACE-III) (2012) is a brief cognitive battery that assesses five sub-domains of cognition (attention and orientation, memory, verbal fluency, language, and visuospatial abilities) which are commonly impaired in dementia. Objective: We aimed to validate the Egyptian-Arabic ACE-III in dementia patients, and to provide cutoff scores for the ACE-III in diagnosing dementia in Egyptian-Arabic speakers. Methods: We included 37 patients with dementia (Alzheimer's disease, n = 25, vascular dementia, n = 8, and dementia with Lewy bodies, n = 4) and 43 controls. Results: There was a statistically significant difference (p < 0.001) in the total ACE-III score between dementia patients (mean 49.81 ± 18.58) and controls (mean 84.84 ± 6.36). There was also a statistically significant difference between dementia patients and controls in all sub-score domains of the ACE-III (p < 0.001). Using a receiver operator characteristic curve, the optimal cutoff score for dementia on the ACE-III total score was 72, (89% sensitivity, 95% specificity, 92% accuracy). Conclusions: The results of this study provide objective validation of the Egyptian-Arabic version of the ACE-III as a screening tool for dementia, with high sensitivity, specificity, and accuracy comparable to other translated versions of the ACE-III.

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This study showed that the adapted Arabic HHIE-S is a valid and reliable questionnaire for the assessment of handicapping hearing impairment in Egyptian elderly patients.