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EQ-5D in patients with dementia an investigation of inter-rater agreement

Coucill, Wendy, Bryant, S, Bentham, P, Buckley, A and Laight, A 2001. EQ-5D in patients with dementia an investigation of inter-rater agreement. Medical Care 39 (8) , pp. 760-771. 10.1097/00005650-200108000-00003

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Abstract

Examined the inter-rater agreement of patient and proxy completion of the EuroQol EQ-5D instrument (EQ-5D). The EQ-5D instrument was completed separately by 64 patients (aged 53-91 yrs) with a range of dementia severity, their caregivers and a physician. Assessment of inter-rater agreement involved comparison of self-completed (patient) and proxy-completed (caregiver and physician) responses for each dimension of EQ-5D, using a weighted kappa score. Three key hypotheses were tested: Interrater agreement would be stronger between patient and caregiver than between patient and physician. Interrater agreement would be stronger on the 'observable' and objective dimensions of EQ-5D. Interrater agreement between patient and proxies would be stronger for patients with earlier dementia. The EQ-5D health state classification system and visual analog scale were used to assess health related quality of life. Global severity of dementia was determined using the Clinical Dementia Rating Scale. The principal finding of this study was that responses to EQ-5D questions were highly variable across the 3 raters such that none of the 3 hypotheses were strongly supported

Item Type: Article
Date Type: Publication
Status: Published
Schools: Social Sciences (Includes Criminology and Education)
Subjects: H Social Sciences > H Social Sciences (General)
Publisher: American Public Health Association
ISSN: 0025-7079
Date of Acceptance: 23 February 2001
Last Modified: 25 Jul 2018 13:40
URI: http://orca-mwe.cf.ac.uk/id/eprint/113020

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