Performance of the 16-Item Informant Questionnaire on Cognitive Decline for the Elderly (IQCODE) in an Arabic-Speaking Older Population

Dementia and Geriatric Cognitive Disorders
T K T PhungGunhild Waldemar

Abstract

The North African and Middle Eastern region has high illiteracy rates among older people, making direct cognitive testing challenging. Validated screening instruments for dementia in Arabic are lacking. We aimed to validate the Arabic version of the 16-item Informant Questionnaire on Cognitive Decline for the Elderly (A-IQCODE 16) for screening for dementia through an informant. 236 Lebanese participants older than 65 years, 143 with normal cognition and 93 with mild-to-moderate dementia according to the DSM-IV criteria, and their informants were recruited. Half of the participants had no formal education. Interviewers blinded to the cognitive status of the participants administered the A-IQCODE 16 to the informants. The ability of the A-IQCODE 16 to screen for dementia was evaluated against the DSM-IV diagnoses. The A-IQCODE 16 had excellent overall predictive power (area under the receiver operator characteristic curve = 0.96). A cutoff point of >3.34 yielded the best sensitivity (92.5%) and specificity (94.4%) for dementia screening. At this cutoff point, the discriminatory ability of the A-IQCODE 16 was comparable between participants with and those without formal education. The A-IQCODE 16 is not biased by education and is...Continue Reading

Citations

Nov 15, 2016·Applied Neuropsychology. Adult·Parunyou Julayanont, Doungporn Ruthirago
Jun 19, 2017·Neuropsychology Review·Ahmed F FasfousMiguel Pérez-García
Apr 10, 2020·Acta Anaesthesiologica Scandinavica·Mo H LarsenLars S Rasmussen
Jun 6, 2017·Alzheimer's & Dementia : the Journal of the Alzheimer's Association·Kieu T T PhungGunhild Waldemar
Feb 8, 2018·Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova·E A KovalenkoD A Katunin
Jul 19, 2019·Dementia and Geriatric Cognitive Disorders·Maria Skaalum Petersen
Dec 4, 2021·Journal of Applied Gerontology : the Official Journal of the Southern Gerontological Society·Isabel Pellicer-Espinosa, Unai Díaz-Orueta

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