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. 2022 Jul 6;20:105. doi: 10.1186/s12955-022-01998-8

Table 1.

International valuation protocol for EQ-5D-Y: key elements of the methods

Protocol feature DCE cTTO
Whose values are relevant? Adult general population Adult general population
What perspective? Hypothetical child Hypothetical child
Age of child? 10 years of age 10 years of age
Duration of states? Not specified 10 years
Design? 10 blocks; 15 pairs each respondent 1 block of 10 states
Specific format of task? Pairwise choice; no indifference option Composite TTO i.e. conventional TTO for values > 0, lead time TTO for values < 0
Sample size? 1000 200
Mode of administration? Online self-completion Computer-assisted personal interviews (CAPI), conducted either in person or online
Number of tasks per respondent? 15 pairwise choice tasks 10 cTTO tasks