An overview of the time trade-off method: concept, foundation, and the evaluation of distorting factors in putting a value on health

AK Lugnér, PFM Krabbe - Expert review of pharmacoeconomics & …, 2020 - Taylor & Francis
Introduction Preference-based instruments measuring health status express the value of
specific health states in a single number. One method used is time trade-off (TTO). Health …

Valuing health‐related quality of life: An EQ‐5 D‐5 L value set for E ngland

NJ Devlin, KK Shah, Y Feng, B Mulhern… - Health …, 2018 - Wiley Online Library
A new version of the EQ‐5D, the EQ‐5D‐5L, is available. The aim of this study is to produce
a value set to support use of EQ‐5D‐5L data in decision‐making. The study design followed …

What justifies the allocation of health care resources to patients with disorders of consciousness?

A Peterson, S Aas, D Wasserman - AJOB neuroscience, 2021 - Taylor & Francis
This paper critically engages ethical issues in the allocation of novel, and potentially costly,
health care resources to patients with disorders of consciousness. First, we review potential …

[HTML][HTML] A program of methodological research to arrive at the new international EQ-5D-5L valuation protocol

M Oppe, NJ Devlin, B van Hout, PFM Krabbe… - Value in Health, 2014 - Elsevier
Objectives To describe the research that has been undertaken by the EuroQol Group to
improve current methods for health state valuation, to summarize the results of an extensive …

EuroQol protocols for time trade-off valuation of health outcomes

M Oppe, K Rand-Hendriksen, K Shah… - …, 2016 - Springer
The time trade-off (TTO) valuation technique is widely used to determine utility values of
health outcomes to inform quality-adjusted life-year (QALY) calculations for use in economic …

[HTML][HTML] Handling data quality issues to estimate the Spanish EQ-5D-5L value set using a hybrid interval regression approach

JM Ramos-Goñi, BM Craig, M Oppe, Y Ramallo-Fariña… - Value in Health, 2018 - Elsevier
Abstract Background The Spanish five-level EuroQol five-dimensional questionnaire (EQ-5D-
5L) valuation study was the first to use the EuroQol Valuation Technology protocol, including …

[HTML][HTML] Comparison of value set based on DCE and/or TTO data: scoring for EQ-5D-5L health states in Japan

T Shiroiwa, S Ikeda, S Noto, A Igarashi, T Fukuda… - Value in Health, 2016 - Elsevier
Background The valuation study of the five-level version of the EuroQol five-dimensional
questionnaire (EQ-5D-5L) involved composite time trade-off (cTTO) and a discrete choice …

Explaining the characteristics of the power (CRRA) utility family

PP Wakker - Health economics, 2008 - Wiley Online Library
The power family, also known as the family of constant relative risk aversion (CRRA), is the
most widely used parametric family for fitting utility functions to data. Its characteristics have …

[HTML][HTML] Quality control process for EQ-5D-5L valuation studies

JM Ramos-Goñi, M Oppe, B Slaap, JJV Busschbach… - Value in health, 2017 - Elsevier
Background The values of the five-level EuroQol five-dimensional questionnaire (EQ-5D-5L)
are elicited using composite time trade-off and discrete choice experiments. Unfortunately …

Valuation and modeling of EQ-5D-5L health states using a hybrid approach

JM Ramos-Goñi, JL Pinto-Prades, M Oppe… - Medical care, 2017 - journals.lww.com
Background: The EQ-5D instrument is the most widely used preference-based health-
related quality of life questionnaire in cost-effectiveness analysis of health care …