Do visual analogue scale (VAS) derived standard gamble (SG) utilities agree with Health Utilities Index utilities? A comparison of patient and community preferences for health status in rheumatoid arthritis patients.

Health and Quality of Life Outcomes
Amir A RashidiCarlo A Marra

Abstract

Assessment of Health Related Quality of Life (HRQL) has become increasingly important and various direct and indirect methods and instruments have been devised to measure it. In direct methods such as Visual Analog Scale (VAS) and Standard Gamble (SG), respondent both assesses and values health states therefore the final score reflects patient's preferences. In indirect methods such as multi-attribute health status classification systems, the patient provides the assessment of a health state and then a multi-attribute utility function is used for evaluation of the health state. Because these functions have been estimated using valuations of general population, the final score reflects community's preferences. The objective of this study is to assess the agreement between community preferences derived from the Health Utilities Index Mark 2 (HUI2) and Mark 3 (HUI3) systems, and patient preferences. Visual analog scale (VAS) and HUI scores were obtained from a sample of 320 rheumatoid arthritis patients. VAS scores were adjusted for end-aversion bias and transformed to standard gamble (SG) utility scores using 8 different power conversion formulas reported in other studies. Individual level agreement between SG utilities and HUI2 ...Continue Reading

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Citations

Aug 14, 2013·Journal of Child Health Care : for Professionals Working with Children in the Hospital and Community·Shanil Ebrahim, Christopher Parshuram
Mar 9, 2011·Medical Decision Making : an International Journal of the Society for Medical Decision Making·Vilija R JoyceDouglas K Owens
Sep 4, 2017·Health and Quality of Life Outcomes·Michela Meregaglia, John Cairns
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Aug 31, 2017·Health and Quality of Life Outcomes·Anna SelvaPablo Alonso-Coello
Nov 21, 2020·Journal of Biomedical Informatics·Evangelos Triantaphyllou, Juri Yanase

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Software Mentioned

SAS
HUI3

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