INTERNATIONAL SURVEY ON WILLINGNESS-TO-PAY (WTP) FOR ONE ADDITIONAL QALY GAINED: WHAT IS THE THRESHOLD OF COST EFFECTIVENESS?
- Authors
- Shiroiwa, Takeru; Sung, Yoon-Kyoung; Fukuda, Takashi; Lang, Hui-Chu; Bae, Sang-Cheol; Tsutani, Kiichiro
- Issue Date
- Apr-2010
- Publisher
- JOHN WILEY & SONS LTD
- Keywords
- cost-effectiveness analysis; threshold; QALY; WTP; double-bound dichotomous choice
- Citation
- HEALTH ECONOMICS, v.19, no.4, pp.422 - 437
- Indexed
- SCIE
SSCI
SCOPUS
- Journal Title
- HEALTH ECONOMICS
- Volume
- 19
- Number
- 4
- Start Page
- 422
- End Page
- 437
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/175183
- DOI
- 10.1002/hec.1481
- ISSN
- 1057-9230
- Abstract
- Although the threshold of cost effectiveness of medical interventions is thought to be 20 pound 000-30 pound 000 in the UK, and $50 000-$100 000 in the US, it is well known that these values are unjustified, due to lack of explicit scientific evidence. We measured willingness-to-pay (WTP) for one additional quality-adjusted life-year gained to determine the threshold of the incremental cost-effectiveness ratio. Our study used the Internet to compare WTP for the additional year of survival in a perfect status of health in Japan, the Republic of Korea (ROK), Taiwan, Australia, the UK, and the US. The research utilized a double-bound dichotomous choice, and analysis by the nonparametric Turnbull method. WTP values were JPY 5 million (Japan), KWN 68 million (ROK). NT$ 2.1 million (Taiwan), 23000 (UK), AU$ 64 000 (Australia), and US$ 62 000 (US). The discount rates of outcome were estimated at 6.8% (Japan), 3.7% (ROK), 1.6% (Taiwan), 2.8% (UK), 1.9% (Australia), and 3.2% (US). Based on the current study, we suggest new classification of cost-effectiveness plane and methodology for decision making.
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