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? | 10Â years of age | 10Â years of age |
Duration of states? | Not specified | 10Â 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 |