Abstract
Background/Aims: The aim of this study was to assess the ability of neuropsychological tests to differentiate autopsy-defined Alzheimer disease (AD) from subcortical ischemic vascular dementia (SIVD). Methods: From a sample of 175 cases followed longitudinally that underwent autopsy, we selected 23 normal controls (NC), 20 SIVD, 69 AD, and 10 mixed cases of dementia. Baseline neuropsychological tests, including Memory Assessment Scale word list learning test, control oral word association test, and animal fluency, were compared between the three autopsy-defined groups. Results: The NC, SIVD, and AD groups did not differ by age or education. The SIVD and AD groups did not differ by the Global Clinical Dementia Rating Scale. Subjects with AD performed worse on delayed recall (p < 0.01). A receiver operating characteristics analysis comparing the SIVD and AD groups including age, education, difference between categorical (animals) versus phonemic fluency (letter F), and the first recall from the word learning test distinguished the two groups with a sensitivity of 85%, specificity of 67%, and positive likelihood ratio of 2.57 (AUC = 0.789, 95% CI 0.69-0.88, p < 0.0001). Conclusion: In neuropathologically defined subgroups, neuropsychological profiles have modest ability to distinguish patients with AD from those with SIVD.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1-11 |
| Number of pages | 11 |
| Journal | Dementia and Geriatric Cognitive Disorders |
| DOIs | |
| State | Accepted/In press - Jun 9 2017 |
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Keywords
- Alzheimer disease
- Memory performance
- Neuropathology
- Subcortical ischemic vascular dementia
- Vascular cognitive impairment
ASJC Scopus subject areas
- Geriatrics and Gerontology
- Cognitive Neuroscience
- Psychiatry and Mental health
Cite this
Neuropsychological Profiles Differentiate Alzheimer Disease from Subcortical Ischemic Vascular Dementia in an Autopsy-Defined Cohort. / Ramirez-Gomez, Liliana; Zheng, Ling; Reed, Bruce R; Kramer, Joel; Mungas, Dan M; Zarow, Chris; Vinters, Harry; Ringman, John M.; Chui, Helena.
In: Dementia and Geriatric Cognitive Disorders, 09.06.2017, p. 1-11.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Neuropsychological Profiles Differentiate Alzheimer Disease from Subcortical Ischemic Vascular Dementia in an Autopsy-Defined Cohort
AU - Ramirez-Gomez, Liliana
AU - Zheng, Ling
AU - Reed, Bruce R
AU - Kramer, Joel
AU - Mungas, Dan M
AU - Zarow, Chris
AU - Vinters, Harry
AU - Ringman, John M.
AU - Chui, Helena
PY - 2017/6/9
Y1 - 2017/6/9
N2 - Background/Aims: The aim of this study was to assess the ability of neuropsychological tests to differentiate autopsy-defined Alzheimer disease (AD) from subcortical ischemic vascular dementia (SIVD). Methods: From a sample of 175 cases followed longitudinally that underwent autopsy, we selected 23 normal controls (NC), 20 SIVD, 69 AD, and 10 mixed cases of dementia. Baseline neuropsychological tests, including Memory Assessment Scale word list learning test, control oral word association test, and animal fluency, were compared between the three autopsy-defined groups. Results: The NC, SIVD, and AD groups did not differ by age or education. The SIVD and AD groups did not differ by the Global Clinical Dementia Rating Scale. Subjects with AD performed worse on delayed recall (p < 0.01). A receiver operating characteristics analysis comparing the SIVD and AD groups including age, education, difference between categorical (animals) versus phonemic fluency (letter F), and the first recall from the word learning test distinguished the two groups with a sensitivity of 85%, specificity of 67%, and positive likelihood ratio of 2.57 (AUC = 0.789, 95% CI 0.69-0.88, p < 0.0001). Conclusion: In neuropathologically defined subgroups, neuropsychological profiles have modest ability to distinguish patients with AD from those with SIVD.
AB - Background/Aims: The aim of this study was to assess the ability of neuropsychological tests to differentiate autopsy-defined Alzheimer disease (AD) from subcortical ischemic vascular dementia (SIVD). Methods: From a sample of 175 cases followed longitudinally that underwent autopsy, we selected 23 normal controls (NC), 20 SIVD, 69 AD, and 10 mixed cases of dementia. Baseline neuropsychological tests, including Memory Assessment Scale word list learning test, control oral word association test, and animal fluency, were compared between the three autopsy-defined groups. Results: The NC, SIVD, and AD groups did not differ by age or education. The SIVD and AD groups did not differ by the Global Clinical Dementia Rating Scale. Subjects with AD performed worse on delayed recall (p < 0.01). A receiver operating characteristics analysis comparing the SIVD and AD groups including age, education, difference between categorical (animals) versus phonemic fluency (letter F), and the first recall from the word learning test distinguished the two groups with a sensitivity of 85%, specificity of 67%, and positive likelihood ratio of 2.57 (AUC = 0.789, 95% CI 0.69-0.88, p < 0.0001). Conclusion: In neuropathologically defined subgroups, neuropsychological profiles have modest ability to distinguish patients with AD from those with SIVD.
KW - Alzheimer disease
KW - Memory performance
KW - Neuropathology
KW - Subcortical ischemic vascular dementia
KW - Vascular cognitive impairment
UR - http://www.scopus.com/inward/record.url?scp=85020458543&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85020458543&partnerID=8YFLogxK
U2 - 10.1159/000477344
DO - 10.1159/000477344
M3 - Article
C2 - 28595184
AN - SCOPUS:85020458543
SP - 1
EP - 11
JO - Dementia and Geriatric Cognitive Disorders
JF - Dementia and Geriatric Cognitive Disorders
SN - 1420-8008
ER -