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Journal of Geriatric Psychiatry and Neurology, Vol. 19, No. 4, 202-208 (2006)
DOI: 10.1177/0891988706292758

Assessment of Anxiety in Dementia: An Investigation Into the Association of Different Methods of Measurement

Laura E. Gibbons, PhD

Division of General Internal Medicine, School of Medicine, University of Washington, GibbonsL{at}u.washington.edu

Linda Teri, PhD

Department of Psychosocial and Community Health, School of Nursing, University of Washington

Rebecca G. Logsdon, PhD

Department of Psychosocial and Community Health, School of Nursing, University of Washington

Susan M. McCurry, PhD

Department of Psychosocial and Community Health, School of Nursing, University of Washington

The objectives were to compare patient and caregiver ratings of anxiety for individuals with Alzheimer’s disease and investigate their association with ratings of patient depression. Participants were 95 community-dwelling Alzheimer’s disease patients and their caregivers. Measurements included caregiver proxy ratings: Rating Anxiety in Dementia, the NeuroPsychiatric Inventory, the Revised Memory and Behavior Problems Checklist, and the Cornell Scale for Depression in Dementia. Patient self-assessments included the Clinical Anxiety Scale (adapted) and the Geriatric Depression Scale. Correlations among anxiety measures ranged from {rho} = .16 to .40, whereas correlations between anxiety and depression scales ranged from {rho} = .03 to .66. Overlap among items across both anxiety and depression scales appeared to be the most important factor in determining these associations. Current scales for anxiety in dementia differ in their construction of symptoms and can overlap considerably with depression scales. Because of this, measures inadequately distinguish anxiety from depression in individuals with Alzheimer’s disease. The measurement of anxiety in dementia needs additional refinement.

Key Words: anxiety • depression • measurement • patient self-report • patient-caregiver agreement


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