The book "Self-Reported Population Health: An International Perspective based on EQ-5D" is a comprehensive study of health-related quality of life (HRQoL) using the EuroQol Group's EQ-5D instrument. The book is edited by Agota Szende, Bas Janssen, and Juan Cabasés, and it presents the results of four main analyses of the international EQ-5D database. The EQ-5D is a standardized questionnaire that assesses five dimensions of health: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression, with each dimension having three or five levels of severity. Key findings include: 1. **Data Sources and Methods**: The book includes data from 27 EQ-5D population surveys in 24 countries, covering a wide range of demographic characteristics. 2. **Population Norms**: Detailed population norms for EQ VAS scores, EQ-5D index values, and reported problems by age and gender are provided for each country. 3. **Cross-Country Analysis**: The impact of demographic differences on EQ-5D outcomes is analyzed, showing that cross-country differences in self-reported health are largely explained by economic and health system indicators. 4. **Socio-Demographic Analysis**: The book explores the distribution of health within populations and the factors contributing to inequalities in self-reported health, such as age, gender, and education level. The book aims to provide researchers and policymakers with valuable reference data and insights into the use of EQ-5D in population health studies and clinical trials. It also highlights the importance of standardized data collection and analysis to facilitate comparative research and informed decision-making in healthcare.The book "Self-Reported Population Health: An International Perspective based on EQ-5D" is a comprehensive study of health-related quality of life (HRQoL) using the EuroQol Group's EQ-5D instrument. The book is edited by Agota Szende, Bas Janssen, and Juan Cabasés, and it presents the results of four main analyses of the international EQ-5D database. The EQ-5D is a standardized questionnaire that assesses five dimensions of health: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression, with each dimension having three or five levels of severity. Key findings include: 1. **Data Sources and Methods**: The book includes data from 27 EQ-5D population surveys in 24 countries, covering a wide range of demographic characteristics. 2. **Population Norms**: Detailed population norms for EQ VAS scores, EQ-5D index values, and reported problems by age and gender are provided for each country. 3. **Cross-Country Analysis**: The impact of demographic differences on EQ-5D outcomes is analyzed, showing that cross-country differences in self-reported health are largely explained by economic and health system indicators. 4. **Socio-Demographic Analysis**: The book explores the distribution of health within populations and the factors contributing to inequalities in self-reported health, such as age, gender, and education level. The book aims to provide researchers and policymakers with valuable reference data and insights into the use of EQ-5D in population health studies and clinical trials. It also highlights the importance of standardized data collection and analysis to facilitate comparative research and informed decision-making in healthcare.