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Journal of Geriatric Psychiatry and Neurology
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0891988709342721v1
22/4/228    most recent
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Article

Assessing Cognition in Parkinson Disease: Use of the Cognitive Linguistic Quick Test

Sotirios Andreas Parashos, MD, PhD*, Marjorie L. Johnson, MA, Cordelia Erickson-Davis, BA, and Catherine L. Wielinski, MPH

* To whom correspondence should be addressed. E-mail: paras001{at}umn.edu.


  Abstract

Objective: To evaluate the Cognitive Linguistic Quick Test (CLQT) as a cognitive screening tool in Parkinson disease (PD). Methods: A total of 93 patients with PD were evaluated with the Mini-Mental State Examination (MMSE) and the CLQT. The CLQT provides separate ratings for 5 cognitive domains. Descriptive statistics, correlations between the tests, and diagnostic value for dementia were analyzed. Results: Cognitive Linguistic Quick Test correlated well with MMSE. Diagnostic values for dementia were similar for the 2 instruments. Unlike the MMSE, the CLQT also provided domain-specific information on cognitive deficits. Cognitive domains were differentially affected between and within the demented and nondemented patient groups with PD: memory was the weakest domain in the demented group and attention in the nondemented. Conclusions: The CLQT is a valuable instrument in assessing cognitive dysfunction in PD. The CLQT is superior to the MMSE as it also provides cognitive domain-specific information.

First published on August 7, 2009, doi:10.1177/0891988709342721

Journal of Geriatric Psychiatry and Neurology 2009;22:228.

A more recent version of this article appeared on December 1, 2009

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