‘lead time’ TTO and ‘lag time’ TTO, have been developed to overcome methodological issues of the ‘classic’ TTO. In the lead … time TTO, ill-health is explicitly placed in the future, after a period of good health, while in lag time TTO a health … properties of lead and lag time TTO. In particular, we use data from a previous study that employed lead and lag time TTO to …

. The new lead time TTO is compared to an equally viable method called lag time TTO, both in two time frames. We test … TTO specifications but with a different mode of administration. Lag time TTO produced lower values than lead time TTO and …

values for EQ-5D-5L health states. The new variants of the TTO, namely lead-time TTO and lag-time TTO, along with the classic … methods yield comparable health-state values. TTO tasks were administered online. It was found that lag-time TTO produced … resembled those of the lag-time TTO in a 20-year time frame in terms of mean absolute difference. The relative importance of …