New tests of QALYs when health varies over time

Bleichrodt, Han; Filko, Martin

doi:10.1016/j.jhealeco.2008.05.009

Cited by 9 publications

(5 citation statements)

References 32 publications

(38 reference statements)

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“…The assumption of intertemporal additivity seems particularly problematic. Bleichrodt and Filko (2008) tested intertemporal additivity in a design that controlled for violations of expected utility and found support for it at the aggregate level, but much less so at the individual level. It should also be emphasized that other studies found support for the existence of one unifying concept of utility, both within the health domain (Stalmeier and Bezembinder, 1999) and outside the health domain (Abdellaoui et al, 2007a).…”

Section: Discussionmentioning

confidence: 99%

The predictive validity of prospect theory versus expected utility in health utility measurement

Abellán-Perpiñán

Bleichrodt

Prades

2009

Journal of Health Economics

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Section: Discussionmentioning

confidence: 99%

The predictive validity of prospect theory versus expected utility in health utility measurement

Abellán-Perpiñán

Bleichrodt

Prades

2009

Journal of Health Economics

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“…There is also evidence that the trajectory of expected future health (e.g. improving or deteriorating) can influence valuation [42][43][44]. Finally, a practical problem is introduced that including duration can make prospects unrealistic for many people.…”

Section: Discussionmentioning

confidence: 99%

Transforming discrete choice experiment latent scale values for EQ-5D-3L using the visual analogue scale

et al. 2020

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Background Discrete choice experiments (DCEs) are widely used to elicit health state preferences. However, additional information is required to transform values to a scale with dead valued at 0 and full health valued at 1. This paper presents DCE-VAS, an understandable and easy anchoring method with low participant burden based on the visual analogue scale (VAS). Methods Responses from 1450 members of the UK general public to a discrete choice experiment (DCE) were analysed using mixed logit models. Latent scale valuations were anchored to a full health = 1, dead = 0 scale using participants' VAS ratings of three states including the dead. The robustness of results was examined. This included a filtering procedure with the influence each individual respondent had on valuation being calculated, and those whose influence was more than two standard deviations away from the mean excluded. Results Coefficients in all models were in the expected direction and statistically significant. Excluding respondents who self-reported not understanding the VAS task did not significantly influence valuation, but excluding a small number who valued 33333 extremely low did. However, after eight respondents were removed via the filtering procedure, valuations were robust to removing other participants. Conclusion DCE-VAS is a feasible way of anchoring DCE results to a 0-1 anchored scale with low additional respondent burden.

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“…The observed violations of EU entailed a reformulation of the axiomatic basis of the QALY model (Bleichrodt and Quiggin 1997, Miyamoto 1999, Bleichrodt and Miyamoto 2003 to avoid reliance on the EU assumptions. Empirical tests of these reformulations have led to mixed results, but the general finding is that the basic QALY model, in which life-years are multiplied by a quality weight, is too restrictive Pinto 2005, Bleichrodt andFilko 2008).…”

Section: The Limitations Of Qalys Under Welfarismmentioning

confidence: 99%

Capabilities as menus: A non-welfarist basis for QALY evaluation

Bleichrodt

Quiggin

2013

Journal of Health Economics

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Quality-Adjusted Life Years (QALYs) are the most widely used measure of health in economic evaluations of health care. Within a welfarist framework QALYs are consistent with people's preferences under stringent assumptions. Several authors have argued that QALYs are a valid measure of health within an extra-welfarist framework. This paper studies the applicability of QALYs within the best-known extra-welfarist framework, Sen's capability approach. We propose a procedure to value capability sets and provide a foundation for QALYs within Sen's capability approach. We show that, under appropriate conditions, the ranking of capabilities can be represented locally by a QALY measure and that a willingness to pay for QALYs can be defined. The validity of QALYs as a general measure of health requires the same stringent conditions as in a welfarist framework.

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New tests of QALYs when health varies over time

Cited by 9 publications

References 32 publications

The predictive validity of prospect theory versus expected utility in health utility measurement

The predictive validity of prospect theory versus expected utility in health utility measurement

Transforming discrete choice experiment latent scale values for EQ-5D-3L using the visual analogue scale

Capabilities as menus: A non-welfarist basis for QALY evaluation

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