Melbourne School of Population and Global Health - Research Publications
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ItemGuidance to Users of EQ-5D-5L Value Sets(Springer International Publishing, 2022)Abstract One of the most common questions that the EuroQol Group is asked by users of the EQ-5D-5L is: ‘Which value set should I use?’. The aim of this chapter is to provide guidance on this issue for users. There are two principal ways that EQ-5D-5L value sets are applied and used. The first is for summarising health-related quality of life to estimate quality-adjusted life-years (QALYs) and changes in QALYs that result from the health care use. This kind of evidence is often part of health technology assessment (HTA). The second category of use is when value sets are employed as a way of summarising and statistically analysing EQ-5D-5L profile data without the aim of estimating QALYs. In each case, the stated requirements of those who use this evidence in decision making is a key consideration. This chapter summarises the relevant considerations to be taken into account when choosing a value set for QALY estimation purposes; and the considerations which are relevant to choosing a value set to use in other, ‘non-QALY’ applications.
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ItemWhere Next for EQ-5D-5L National Value Sets and the EQ-VT Protocol?(Springer International Publishing, 2022)Abstract The purpose of this chapter is to reflect on the future of EQ-5D-5L valuation studies, going beyond the value sets summarised in this book. This includes a number of linked themes. First, the EQ-5D-5L valuation research programme has allowed the continued evolution of methods, as methodological studies have demonstrated that aspects of the EQ-VT protocol could be strengthened or improved. This chapter describes some of the key candidates for future refinement of the methods for valuing EQ-5D-5L. Second, while the standardisation of valuation methodology is important, it is anticipated that many countries may require a less resource-intensive, but still rigorous version of the valuation protocol. This chapter outlines the progress towards developing a ‘lite’ version of the EQ-VT protocol, and considers the future possibility of valuation protocols based exclusively on discrete choice experiments, with accompanying strengths and weaknesses. Finally, the ‘shelf-life’ of value sets is considered, along with how demographic and other societal changes may manifest in how people value health, and the implications of that for the need to update EQ-5D-5L value sets.
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ItemThe Development of the EQ-5D-5L and its Value Sets(Springer International Publishing, 2022)Abstract This chapter introduces the EQ-5D-5L questionnaire and its development by the EuroQol Group. The availability of the EQ-5D-5L, and the growing evidence of its pivotal role as a measurement system, generated a demand for ‘values’ to accompany it that would enable the use of EQ-5D-5L data in the estimation of quality-adjusted life-years (QALYs) and other applications where EQ-5D-5L profile data needs to be summarised by a single number. Chapter 1 sets out the main aim of the book: to provide an accessible source of information and guidance to support users of EQ-5D-5L and its value sets. Specifically, the book aims to improve users’ understanding of how EQ-5D-5L value sets are generated using the internationally standardised EQ-VT protocol; to raise awareness of the characteristics and properties of value sets; and to inform users’ choice of which value set to select for which purpose, and how that choice may affect analysis. The chapter concludes with an overview of the content of the book.