Lead time TTO: leading to better health state valuations?
AE Attema, MM Versteegh, M Oppe… - Health …, 2013 - Wiley Online Library
Preference elicitation tasks for better than dead (BTD) and worse than dead (WTD) health
states vary in the conventional time trade‐off (TTO) procedure, casting doubt on uniformity of …
states vary in the conventional time trade‐off (TTO) procedure, casting doubt on uniformity of …
[HTML][HTML] Time to tweak the TTO: results from a comparison of alternative specifications of the TTO
This article examines the effect that different specifications of the time trade-off (TTO)
valuation task may have on values for EQ-5D-5L health states. The new variants of the TTO …
valuation task may have on values for EQ-5D-5L health states. The new variants of the TTO …
Protocols for time tradeoff valuations of health states worse than dead: a literature review
C Tilling, N Devlin, A Tsuchiya… - Medical Decision …, 2010 - journals.sagepub.com
Background. The time tradeoff (TTO) method of preference elicitation allows respondents to
value a state as worse than dead, generally either through the Torrance protocol or the …
value a state as worse than dead, generally either through the Torrance protocol or the …
[HTML][HTML] Lead versus lag-time trade-off variants: does it make any difference?
F Augustovski, L Rey-Ares, V Irazola, M Oppe… - The European Journal of …, 2013 - Springer
Objectives The traditional time trade-off (TTO) method has some problems in the valuation of
health states considered worse than dead. The aim of our study is to compare two TTO …
health states considered worse than dead. The aim of our study is to compare two TTO …
[HTML][HTML] The way that you do it? An elaborate test of procedural invariance of TTO, using a choice-based design
AE Attema, WBF Brouwer - The European Journal of Health Economics, 2012 - Springer
The time tradeoff (TTO) method is often used to derive Quality-Adjusted Life Year health
state valuations. An important problem with this method is that results have been found to be …
state valuations. An important problem with this method is that results have been found to be …
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 …
specific health states in a single number. One method used is time trade-off (TTO). Health …
[HTML][HTML] Challenges in valuing temporary health states for economic evaluation: a review of empirical applications of the chained time trade-off method
Background The time trade-off (TTO) technique is commonly used to elicit health state
utilities. Nevertheless, when the health states being valued are temporary, the TTO …
utilities. Nevertheless, when the health states being valued are temporary, the TTO …
A comparison of alternative variants of the lead and lag time TTO
ABSTRACT 'Lead Time'TTO improves upon conventional TTO by providing a uniform
method for eliciting positive and negative values. This research investigates (i) the values …
method for eliciting positive and negative values. This research investigates (i) the values …
How dead is dead? Qualitative findings from participants of combined traditional and lead-time time trade-off valuations
F Al Sayah, A Mladenovic, K Gaebel, F Xie… - Quality of Life …, 2016 - Springer
Abstract Purpose The EuroQol Valuation Technology (EQ-VT) uses traditional time trade-off
(tTTO) for health states better than dead and lead-time TTO (LT-TTO) for states worse than …
(tTTO) for health states better than dead and lead-time TTO (LT-TTO) for states worse than …
[HTML][HTML] The effects of lead time and visual aids in TTO valuation: a study of the EQ-VT framework
Background The effect of lead time in time trade-off (TTO) valuation is not well understood.
The purpose of this study was to investigate the effects on health-state valuation of the …
The purpose of this study was to investigate the effects on health-state valuation of the …