Cultural Values: Can They Explain Differences in Health Utilities between Countries?. (July 2019)

• Record Type: Journal Article
• Authors: Roudijk, Bram; Donders, A. Rogier T.; Stalmeier, Peep F. M.
• Other Names: Luo Nan non-byline-author.; Viney Rosalie non-byline-author.; Andrade Monica Viegas non-byline-author.; Gudex Claire non-byline-author.; de Pouvourville Gerard non-byline-author.; Greiner Wolfgang non-byline-author.; Scalone Luciana non-byline-author.; Tsuchiya Aki non-byline-author.; Golicki Dominik non-byline-author.; Ferreira Pedro non-byline-author.; Prevolnik-Rupel Valentina non-byline-author.; Badia Xavier non-byline-author.; Hsieh Ching-Lin non-byline-author.; Jelsma Jennifer non-byline-author.; Santos Marisa non-byline-author.; Xie Feng non-byline-author.; Purba Fredrick non-byline-author.; Ikeda Shunya non-byline-author.; Shiroiwa Takeru non-byline-author.; Stolk Elly non-byline-author.; Jo Min-Woo non-byline-author.; Ramos-Goñi Juan-Manuel non-byline-author.; Augustovski Federico non-byline-author.; Rey-Ares Lucila non-byline-author.; Devlin Nancy non-byline-author.; Shah Koonal non-byline-author.; Pattanaphesaj Juntana non-byline-author.; Tongsiri Sirinart non-byline-author.
• Is Part Of: Medical decision making. Volume 39:Number 5(2019)
• Page Start: 605
• Page End: 616
• Publication Date: 2019-07
• Subjects: cultural values -- EQ-5D -- health utilities -- multilevel modelling; Medical policy -- Periodicals; Clinical medicine -- Decision making -- Periodicals; Medicine -- Periodicals; Médecine clinique -- Prise de décision -- Périodiques; 362.1
• DOI: 10.1177/0272989X19841587
• Languages: English
• ISSNs: 0272-989X

Abstract

Introduction. Health utilities are widely used in health care. The distributions of utilities differ between countries; some countries more often report worse than dead health states, while mild states are valued more or less the same. We hypothesize that cultural values explain these country-related utility differences.Research Question. What is the effect of sociodemographic background, methodological factors, and cultural values on differences in health utilities?Methods and Analyses. Time tradeoff data from 28 EQ-5D valuation studies were analyzed, together with their sociodemographic variables. The dependent variable wasΔ u, the utility difference between mild and severe states. Country-specific cultural variables were taken from the World Values Survey. Multilevel models were used to analyze the effect of sociodemographic background, methodology (3L v. 5L), and cultural values onΔ u . Intraclass correlation (ICC) for country variation was used to assess the impact of the predicting variables on the variation between countries.Results. Substantial variation inΔ u was found between countries. Adding cultural values did not reduce ICCs for country variation. Sociodemographic background variables were only weakly associated withΔ u and did not affect the ICC.Δ u was 0.118 smaller for EQ-5D-5L studies.Discussion. Δ u varies between countries. These differences were not explained by national cultural values. In conclusion, despite correction for various variables, utility differences between countries remain substantial and unexplained. This justifies the use of country-specific value sets for instruments such as the EQ-5D.