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

T. Rune Nielsen; Thien Kieu Thi Phung; Monique Chaaya; Andrew Mackinnon; Gunhild Waldemar

doi:10.1159/000441649

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

T. Rune Nielsen, Thien Kieu Thi Phung, Monique Chaaya, Andrew Mackinnon, Gunhild Waldemar

Department of Clinical Medicine

11 Citations (Scopus)

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.

Original language	English
Journal	Dementia and Geriatric Cognitive Disorders
Volume	41
Issue number	1-2
Pages (from-to)	46-54
Number of pages	9
ISSN	1420-8008
DOIs	https://doi.org/10.1159/000441649
Publication status	Published - 1 Mar 2016

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10.1159/000441649Licence: CC BY-NC-ND

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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. / Nielsen, T. Rune; Phung, Thien Kieu Thi; Chaaya, Monique et al.
In: Dementia and Geriatric Cognitive Disorders, Vol. 41, No. 1-2, 01.03.2016, p. 46-54.

Research output: Contribution to journal › Journal article › Research › peer-review

Nielsen, TR, Phung, TKT, Chaaya, M, Mackinnon, A & Waldemar, G 2016, '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', Dementia and Geriatric Cognitive Disorders, vol. 41, no. 1-2, pp. 46-54. https://doi.org/10.1159/000441649

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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.",

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AU - Mackinnon, Andrew

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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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