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Type: Journal article
Title: Neuropsychological deficits in frontotemporal dementia and Alzheimer's disease: a meta-analytic review
Author: Hutchinson, A.
Mathias, J.
Citation: Journal of Neurology Neurosurgery and Psychiatry, 2007; 78(1):917-928
Publisher: British Med Journal Publ Group
Issue Date: 2007
ISSN: 0022-3050
Statement of
A D Hutchinson, J L Mathias
Abstract: We sought to identify the cognitive tests that best discriminate between Alzheimer’s disease (AD) and frontotemporal dementia (FTD). A comprehensive search of all studies examining the cognitive performance of persons diagnosed with AD and FTD, published between 1980 and 2006, was conducted. Ninety-four studies were identified, comprising 2936 AD participants and 1748 FTD participants. Weighted Cohen’s d effect sizes, percentage overlap statistics, confidence intervals and fail-safe Ns were calculated for each cognitive test that was used by two or more studies. The most discriminating cognitive tests were measures of orientation, memory, language, visuomotor function and general cognitive ability. Although there were large and significant differences between groups on these measures, there was substantial overlap in the scores of the AD and FTD groups. Age, education, years since diagnosis and diagnostic criteria did not significantly contribute to the group differences. Given the large overlap in the test performance of persons diagnosed with AD and FTD, cognitive tests should be used cautiously and in conjunction with a medical history, behavioural observations, imaging and information from relatives when making differential diagnoses.
Keywords: Humans; Dementia; Alzheimer Disease; Diagnosis, Differential; Neuropsychological Tests
Description: Copyright © 2007 by the BMJ Publishing Group Ltd.
RMID: 0020070266
DOI: 10.1136/jnnp.2006.100669
Appears in Collections:Psychology publications

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