Combining the Rowland Universal Dementia Assessment Scale and the Informant Questionnaire on Cognitive Decline in the Elderly to Improve Detection of Dementia in an Arabic-Speaking Population
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S. Karger AG
Abstract
Background/Aims: The aim of this study was to assess whether combining the Rowland Universal Dementia Assessment Scale (RUDAS) and Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) could improve diagnostic accuracy when screening for dementia in an Arabic-speaking population with low levels of literacy. Methods: Based on data from 225 elderly participant and informant dyads, the screening performances of the two instruments were compared and three methods for combining them-'or', 'and' and 'weighted sum' rules-were assessed. Results: The 'weighted sum' method had a significantly better area under the curve value compared to the RUDAS used alone. The 'weighted sum' method and the 'and' rule had the highest specificity, while the 'or' rule had the best sensitivity. Conclusion: Harnessing the RUDAS and IQCODE increased diagnostic accuracy when screening for dementia in this study population. © 2016 S. Karger AG, Basel.
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Arabic, Cognitive screening test, Dementia, Diagnostic accuracy, Illiteracy, Aged, Aged, 80 and over, Cognition disorders, Female, Humans, Language, Lebanon, Literacy, Male, Neuropsychological tests, Psychiatric status rating scales, Sensitivity and specificity, Surveys and questionnaires, Area under the curve, Article, Clinical assessment tool, Cognitive defect, Controlled study, Dementia assessment, Human, Major clinical study, Priority journal, Questionnaire, Rating scale, Rowland universal dementia assessment scale, Screening, Validation study, Very elderly, Neuropsychological test, Psychological rating scale, Reading