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QUESTION: How accurate are clock drawing test (CDT) scoring systems as screening tests for dementia in community dwelling older adults compared with classification using the Consortium to Establish a Registry for Alzheimer's Disease (CERAD) and with naïve judgements?
Blinded comparisons of 7 formal CDT systems with the CERAD and naïve raters.
Community based study in Seattle, Washington, USA.
249 community dwelling older adults (69% women). Participants who met DSM-IV criteria for major depression were excluded.
Description of tests and diagnostic standard
80 clock drawings, 20 from each of the 4 CERAD performance levels (normal and mildly, moderately, and severely …
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