Dutch Tariff for the Five-Level Version of EQ-5D

Area of Science:

• Health Economics
• Psychometrics
• Societal Valuations

Background:

• The EuroQol five-dimensional questionnaire (EQ-5D-5L) was introduced in 2009 with five response levels.
• Societal values are needed for all 3125 health states to utilize the EQ-5D-5L in economic evaluations.

Purpose of the Study:

• To derive a Dutch societal value set (tariff) for the EQ-5D-5L health states.

Main Methods:

• Health state values were collected via face-to-face interviews using composite time trade-off (cTTO) and discrete choice experiment (DCE).
• Data were modeled using tobit regression for cTTO and multinomial conditional logit for DCE.
• Model performance was assessed using internal consistency, goodness of fit, and theoretical considerations.

Main Results:

• A representative sample of 1003 Dutch individuals participated; data from 979 (cTTO) and 992 (DCE) were analyzed.
• The tobit model was preferred for tariff development due to its handling of left-censored data.
• Predicted EQ-5D-5L values ranged from -0.446 to 1.

Conclusions:

• A Dutch tariff for the EQ-5D-5L was successfully established based on cTTO data.
• The tariff represents the preferences of the Dutch population.
• This tariff can be applied to assess the impact of healthcare interventions in economic evaluations.