Data and Methods

This chapter presents the data sources and methods of the book. General population surveys are accumulated from 24 countries (Table 2.1). Descriptive statistics are used to provide EQ-5D population norms by age and gender categories for EQ VAS, EQ-5D index values, and for the five dimensions. Correlations between country-specific EQ-5D data (EQ VAS and 5 dimensions) and country-specific economic and health system macro indicators are calculated in the cross-country analysis. Odds ratios and the health concentration index methodology are used in the socio-demographic analysis of EQ-5D data.