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Factor Structure of the Cornell Scale for Depression in Dementia for Anglo and Hispanic Patients With Dementia

Received February 11, 2000; revised June 2, 2000; accepted July 20, 2000. From The Department of Psychiatry and Behavioral Sciences, University of Miami School of Medicine, Miami, FL, and The Wien Center for Alzheimer's Disease and Memory Disorders, Mt. Sinai Medical Center, Miami Beach, FL. Address correspondence to Dr. Ownby, MSMC Psychiatry, MRI Building 2nd Floor, 4300 Alton Road, Miami Beach, FL 33140. e-mail: rownby{at}attglobal.net

The authors assessed the equivalence of the factor structure of the Cornell Scale for Depression in Dementia (CSDD) in samples of Anglo and Hispanic patients with Alzheimer's disease (AD). Comparing the factor structure of the CSDD in these groups helps establish its validity and aids in its clinical interpretation with Hispanic patients. CSDD ratings were first subjected to preliminary exploratory factor analyses; then the factor structure of the CSDD across groups of English- and Spanish-speaking patients was tested using structural equation modeling. Analyses showed overall similarity in the CSDD factor structure for the two groups but also revealed differences in factor content for several items. The authors discuss the relevance of these differences for those using the CSDD with Hispanic AD patients.

Key Words: Depression • Dementias (general) • Diagnostic Scales

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