Willingness to Pay for Health Improvements Using Stated Preferences: Prevention Versus Treatment [Editor's Choice]

Abstract

Objectives

This study aimed to investigate whether there was a difference in willingness to pay (WTP) between prevention and treatment for health benefits of equal magnitude.

Methods

We used a web-based survey instrument in a sample of the Swedish general population to perform a contingent valuation study assessing the WTP for prevention and treatment. We analyzed the WTP as a continuous variable using a two-part regression model to adjust for a mass point around 0 and a skewed distribution among respondents with a positive WTP.

Results

The study found that people were less willing, on average, to pay at all for prevention than treatment, but those who were willing to pay for prevention had a higher WTP than for treatment. The latter effect was more substantial, and in total mean WTP for prevention was about 85% higher than for treatment.

Conclusions

The findings from this study contribute to the ongoing discussion on the appropriate cost-effectiveness thresholds by adding prevention as a parameter affecting the demand-side value of health improvements. As such, it can provide support to decision makers in healthcare and in health promotion priority setting.

Authors

Ellen Wolff Sofie Larsson Mikael Svensson

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