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Neuropsychol Rev. 2017 Dec;27(4):354-388. doi: 10.1007/s11065-017-9360-6. Epub 2017 Sep 22.

Diagnostic Accuracy of Memory Measures in Alzheimer's Dementia and Mild Cognitive Impairment: a Systematic Review and Meta-Analysis.

Author information

1
Brain, Behavior, and Aging Research Center, VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA.
2
Psychology Service, VA Boston Healthcare System, Boston, MA, USA.
3
New England Geriatric Research, Education and Clinical Center (GRECC), Boston VA Healthcare System, Boston, MA, USA.
4
Sunshine Coast Mind and Neuroscience - Thompson Institute, University of the Sunshine Coast, Sippy Downs, Queensland, Australia.
5
VA San Diego Healthcare System, San Diego, CA, USA.
6
Department of Psychiatry, University of California San Diego, La Jolla, CA, USA.
7
Psychology Service, VA Boston Healthcare System, Boston, MA, USA. stricker.nikki@mayo.edu.
8
Department of Psychiatry and Psychology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA. stricker.nikki@mayo.edu.

Abstract

With an increasing focus on biomarkers in dementia research, illustrating the role of neuropsychological assessment in detecting mild cognitive impairment (MCI) and Alzheimer's dementia (AD) is important. This systematic review and meta-analysis, conducted in accordance with PRISMA (Preferred Reporting Items for Systematic reviews and Meta-Analyses) standards, summarizes the sensitivity and specificity of memory measures in individuals with MCI and AD. Both meta-analytic and qualitative examination of AD versus healthy control (HC) studies (n = 47) revealed generally high sensitivity and specificity (≥ 80% for AD comparisons) for measures of immediate (sensitivity = 87%, specificity = 88%) and delayed memory (sensitivity = 89%, specificity = 89%), especially those involving word-list recall. Examination of MCI versus HC studies (n = 38) revealed generally lower diagnostic accuracy for both immediate (sensitivity = 72%, specificity = 81%) and delayed memory (sensitivity = 75%, specificity = 81%). Measures that differentiated AD from other conditions (n = 10 studies) yielded mixed results, with generally high sensitivity in the context of low or variable specificity. Results confirm that memory measures have high diagnostic accuracy for identification of AD, are promising but require further refinement for identification of MCI, and provide support for ongoing investigation of neuropsychological assessment as a cognitive biomarker of preclinical AD. Emphasizing diagnostic test accuracy statistics over null hypothesis testing in future studies will promote the ongoing use of neuropsychological tests as Alzheimer's disease research and clinical criteria increasingly rely upon cerebrospinal fluid (CSF) and neuroimaging biomarkers.

KEYWORDS:

Alzheimer’s disease; Memory; Meta-analysis; Mild cognitive impairment; Neuropsychological testing; Sensitivity and specificity

PMID:
28940127
PMCID:
PMC5886311
DOI:
10.1007/s11065-017-9360-6
[Indexed for MEDLINE]
Free PMC Article

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