• Am J Geriatr Psychiatry · Aug 2015

    Multicenter Study

    The clinical utility of the Cornell Scale for Depression in Dementia as a routine assessment in nursing homes.

    • Yun-Hee Jeon, Zhicheng Li, Lee-Fay Low, Lynn Chenoweth, Daniel O'Connor, Elizabeth Beattie, Zhixin Liu, and Henry Brodaty.
    • Sydney Nursing School, the University of Sydney, Sydney, Australia. Electronic address: yun-hee.jeon@sydney.edu.au.
    • Am J Geriatr Psychiatry. 2015 Aug 1; 23 (8): 784-93.

    ObjectiveTo examine the clinical utility of the Cornell Scale for Depression in Dementia (CSDD) in nursing homes.Setting14 nursing homes in Sydney and Brisbane, Australia.Participants92 residents with a mean age of 85 years.MeasurementsConsenting residents were assessed by care staff for depression using the CSDD as part of their routine assessment. Specialist clinicians conducted assessment of depression using the Semi-structured Clinical Diagnostic Interview for DSM-IV-TR Axis I Disorders for residents without dementia or the Provisional Diagnostic Criteria for Depression in Alzheimer Disease for residents with dementia to establish expert clinical diagnoses of depression. The diagnostic performance of the staff completed CSDD was analyzed against expert diagnosis using receiver operating characteristic (ROC) curves.ResultsThe CSDD showed low diagnostic accuracy, with areas under the ROC curve being 0.69, 0.68 and 0.70 for the total sample, residents with dementia and residents without dementia, respectively. At the standard CSDD cutoff score, the sensitivity and specificity were 71% and 59% for the total sample, 69% and 57% for residents with dementia, and 75% and 61% for residents without dementia. The Youden index (for optimizing cut-points) suggested different depression cutoff scores for residents with and without dementia.ConclusionWhen administered by nursing home staff the clinical utility of the CSDD is highly questionable in identifying depression. The complexity of the scale, the time required for collecting relevant information, and staff skills and knowledge of assessing depression in older people must be considered when using the CSDD in nursing homes.Copyright © 2015 American Association for Geriatric Psychiatry. Published by Elsevier Inc. All rights reserved.

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