The ICEpop Capability Measure for Adults Instrument for Capabilities: Development of a Tariff for the Dutch General Population

Pieter J. Rohrbach*, Alexandra E. Dingemans, Catharina G.M. Groothuis-Oudshoorn, Janine A. van Til, Brigitte A. Essers, Eric F. van Furth, M. Elske van den Akker-van Marle

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Objectives: The ICEpop Capability Measure for Adults (ICECAP-A) assesses 5 capabilities (stability, attachment, autonomy, achievement, and enjoyment) that are important to one's quality of life and might be an important addition to generic health questionnaires currently used in economic evaluations. This study aimed to develop a Dutch tariff of the Dutch translation of the ICECAP-A.

Methods: The methods used are similar to those used in the development of the UK tariff. A profile case best–worst scaling task was presented to 1002 participants from the general Dutch population. A scale-adjusted latent class analysis was performed to test for preferences of ICECAP-A capabilities and scale heterogeneity.

Results: A 3-preference class 2-scale class model with worst choice as scale predictor was considered optimal and was used to calculate the resulting tariff. Results indicated that the capabilities stability, attachment, and enjoyment were considered more important aspects of quality of life than autonomy and achievement. Additionally, improving capabilities from low to moderate levels had a larger effect on quality of life than improving capabilities that were already at a higher level.

Conclusions: The ICECAP-A tariffs found in this study could be used in economic evaluations of healthcare interventions in The Netherlands.

Original languageEnglish
Number of pages8
JournalValue in health
Early online date8 Sep 2021
DOIs
Publication statusE-pub ahead of print/First online - 8 Sep 2021

Keywords

  • UT-Hybrid-D
  • capabilities
  • discrete choice experiments
  • economic evaluation
  • ICECAP-A
  • quality of life
  • scale-adjusted latent class analysis
  • well-being
  • best–worst scaling

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