Xavier Badia

TL;DR: A universalist approach to the cross-cultural adaptation of HRQoL instruments requires that six types of equivalence be taken into account and this approach requires careful qualitative research in target cultures, particularly in the assessment of conceptual equivalence.

TL;DR: There is an urgent need for a standardized terminology within the HRQOL field, by offering a standard definition of conceptual equivalence, and by suggesting that the adoption of a universalist orientation would require substantial changes to guidelines and more empirical work on the conceptualization ofHRQOL in different cultures.

TL;DR: The Spanish version of the EQ-5D is a simple, valid and practical measure for its use as an outcome variable both in clinical research and in the allocation of health care resources.

TL;DR: This contribution reports how a European set of general population preference weights was derived from the data collected in the 11 valuation studies to suggest that VAS values for EQ-5D health states in six Western European countries can be described by a common model

TL;DR: There were statistically significant differences in values for 34.9% of health states rated directly, and some preference reversals between countries, and further analysis is required to determine how these differences affect cost-effectiveness and cost-utility analyses.