AI Article Synopsis
- The study investigates whether societal health preferences in the U.S. changed between 2002 and 2017, focusing on the valuation of health states using a specific measurement method.
- Findings indicate that, on average, people's willingness to accept a trade-off between quality and quantity of life decreased from 2002 to 2017.
- The results suggest that societal value sets for health measures may need updating, reflecting the evolving perspectives on health and quality of life over time.
Article Abstract
Background: Changes over time in health state values from a societal perspective may be an important reason to consider updating societal value sets for preference-based measures of health.
Objective: The aim was to examine whether stated health preferences are different between 2002 and 2017, controlling for demographic changes in the United States.
Methods: Data from 2002 and 2017 US EQ-5D-3L valuation studies were combined. The primary analysis compared valuations of better-than-dead (BTD) states only, as both studies used the same time trade-off (TTO) method for these states. For worse-than-dead (WTD) states, the 2017 study used the lead-time TTO and the 2002 study used the conventional TTO, which necessitated transformation. Regression models were fitted to BTD values to estimate time-specific differences, adjusting for respondent characteristics. Secondary analyses examined models that fitted WTD values (using linear and nonlinear transformations of the 2002 data) and all values.
Results: The adjusted BTD-only model showed mean values were higher for 2017 compared with 2002 (βY2017=0.05, P<0.001). WTD-only models showed negative changes over time but that were dependent on the transformation method (linear βY2017=-0.72; nonlinear βY2017=-0.35; both P<0.001). Using all values, 2017 mean valuations were lower using a linear transformation (βY2017=-0.11; P<0.001) but did not differ with the nonlinear transformation.
Conclusions: Individuals in 2017 are generally less willing to trade quantity for quality of life compared with 2002. This study provides evidence of time-specific differences in a society's preferences, suggesting that the era in which values were elicited may be an important reason to consider updating societal value sets.
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| http://dx.doi.org/10.1097/MLR.0000000000001714 | DOI Listing |
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