... instead of 42 health states The plain main effects model was preferred [11] Data analysis The EQ-5D index scores were calculated using the UK, US, and Japan preference weights We first determined the ... derived from the UK, US, and Japan preference weights Distribution Distribution of EQ-5D scores derived from the UK, US, and Japan preference weights The Bland-Altman plot of UK and Japan weights ... Tsuchiya A, Williams A, Yfantopoulos J, De Charro F: A comparison of EQ-5D time trade-off values obtained in Germany, United Kingdom, Spain In The measurement and valuation of health status using EQ-5D: ...