TY - JOUR
T1 - International survey on willingness-to-pay (WTP) for one additional qaly gained
T2 - What is the threshold of cost effectiveness?
AU - Shiroiwa, Takeru
AU - Sung, Yoon Kyoung
AU - Fukuda, Takashi
AU - Lang, Hui Chu
AU - Bae, Sang Cheol
AU - Tsutani, Kiichiro
PY - 2010/4
Y1 - 2010/4
N2 - Although the threshold of cost effectiveness of medical interventions is thought to be £20 000-£30 000 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), £23 000 (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.
AB - Although the threshold of cost effectiveness of medical interventions is thought to be £20 000-£30 000 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), £23 000 (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.
KW - Cost-effectiveness analysis
KW - Double-bound dichotomous choice
KW - QALY
KW - Threshold
KW - WTP
UR - http://www.scopus.com/inward/record.url?scp=77949723235&partnerID=8YFLogxK
U2 - 10.1002/hec.1481
DO - 10.1002/hec.1481
M3 - Review article
C2 - 19382128
AN - SCOPUS:77949723235
SN - 1057-9230
VL - 19
SP - 422
EP - 437
JO - Health Economics (United Kingdom)
JF - Health Economics (United Kingdom)
IS - 4
ER -