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Patient- and proxy-reported utility in Alzheimer disease using the EuroQoL
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences, Geriatrics.
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2006 (English)In: Alzheimer Disease and Associated Disorders, ISSN 0893-0341, E-ISSN 1546-4156, Vol. 20, no 1, 49-55 p.Article in journal (Refereed) Published
Abstract [en]

This study aims to compare patient- and proxy-rated utilities and health-related quality of life from individuals in different stages of Alzheimer disease (AD). Two hundred seventy-two patients and their primary caregivers were enrolled in a prospective observational study and underwent three consecutive interviews, 6 months apart. Average Mini-Mental State Examination (MMSE) scores were 19.3, 18.0, and 16.4 at the three interviews; scores ranged from 0 to 30. Using the EuroQoL EQ-5D instrument, patient-rated health utilities were on average 0.833 with little variation across MMSE-based severity levels. Proxy-rated health utilities were 0.69 (MMSE >25), 0.64 (MMSE 21-25), 0.50 (MMSE 15-20), 0.49 (MMSE 10-14), and 0.33 (MMSE <10). Proxy-rated utilities, as well as changes in utilities over time, were significantly related to MMSE scores and inversely related to scores on a brief version of the neuropsychiatric inventory (NPI) and institutionalization. Utilities were highly correlated with the disease-specific quality of life instrument QoL-AD. The study shows that the EuroQoL can be used to rate utilities in Alzheimer disease, but there are important differences between patient- and proxy-ratings.

Place, publisher, year, edition, pages
2006. Vol. 20, no 1, 49-55 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-103515DOI: 10.1097/01.wad.0000201851.52707.c9ISI: 000235920300009PubMedID: 16493236OAI: oai:DiVA.org:uu-103515DiVA: diva2:218369
Available from: 2009-05-19 Created: 2009-05-19 Last updated: 2010-10-19Bibliographically approved

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