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 … lower values than lead-time TTO and that the difference was larger in the longer time frame. Classic TTO values most …

‘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 …

. 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 … by the duration of the health state. Generally, the lead time TTO performed in group sessions gave more favorable results …