Modelling utility weights for the Assessment of Quality of Life (AQoL)-8D

Jeffrey Ralph James Richardson, Kompal Sinha, Angelo Anthony Iezzi, Munir Ahmed Khan

Research output: Contribution to journalArticleResearchpeer-review

53 Citations (Scopus)

Abstract

Purpose The objective of this paper is to describe the four stage methodology used to obtain utility scores for the Assessment of Quality of Life (AQoL)-8D, a 35-item 8 Dimension multi-attribute utility instrument, which was created to achieve a high degree of sensitivity to psycho-social health. Methods Data for the analyses were obtained from a representative group of 347members of the Australian public and from 323mental health patients each of whom provided VAS and time trade-off valuations of multiple health states. Data were used initially to create multiplicative scoring algorithms for each of the instrument?s 8 dimensions and for the overall instrument. Each of the algorithms was then subject to a second-stage econometric `correction?. Results Algorithms were successfully created for each of the AQoL-8D?s dimensions, for physical and mental `super-dimensions? and for the overall AQoL-8D instrument. The final AQoL-8D algorithm has good predictive power with respect to the TTO valuations. Conclusions The AQoL-8D is a suitable instrument for researchers conducting cost utility analyses generally but, in particular, for the analysis of services affecting psychosocial health.
Original languageEnglish
Pages (from-to)2395 - 2404
Number of pages10
JournalQuality of Life Research
Volume23
Issue number8
DOIs
Publication statusPublished - 2014

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