Background: Little information exists on the simultaneous effects of magnetic resonance (MR) infarct characteristics, that may increase the likelihood of dementia or lower cognitive function in community populations. Methods: Participants were 580 community-dwelling individuals from the Chicago Health and Aging Project (CHAP) who underwent detailed clinical evaluation and MR imaging. The association of MR infarct characteristics (region, number, side, and size) with dementia, global cognition and cognition in five separate cognitive domains was examined using logistic and linear regression analyses controlling for age, sex, race, education and time elapsed between clinical evaluation and MRI. Results: A total of 156 persons had MR infarcts: 108 with 1 infarct and 48 with multiple. Poorer cognitive function and, in particular, slower perceptual speed, were associated with infarcts characterized as cortical, multiple, bilateral or large (all p < 0.05). Multiple infarcts in multiple regions were associated with poor performance in all cognitive domains except visuospatial ability (p < 0.05). Race did not modify any of these associations. Conclusions: In this community sample, cortical and multiple infarcts in multiple regions were associated with dementia; cortical, multiple, large and bilateral infarcts were associated with lower cognition, particularly lower memory function and perceptual speed. These effects were not modified by race.
© 2011 S. Karger AG, Basel
- Cognitive function
- Biracial population sample
- Magnetic resonance imaging
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Neelum T. Aggarwal, MD
Rush Alzheimer’s Disease Center
600 South Paulina Avenue, Suite 1038
Chicago, IL 60612 (USA)
Tel. +1 312 942 2338, E-Mail Neelum_T_Aggarwal@rush.edu
Received: May 18, 2011
Accepted: October 7, 2011
Published online: December 17, 2011
Number of Print Pages : 7
Number of Figures : 0, Number of Tables : 5, Number of References : 57
Vol. 38, No. 1, Year 2012 (Cover Date: January 2012)
Journal Editor: Feigin V.L. (Auckland)
ISSN: 0251-5350 (Print), eISSN: 1423-0208 (Online)
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