GHDx

GHDx, the Global Health Data Exchange, is the world's most comprehensive catalog of health-related data sources, maintained by the Institute for Health Metrics and Evaluation at the University of Washington. It serves as a discovery tool that helps researchers, policymakers, and public health professionals find datasets about mortality, disease burden, risk factors, health interventions, and health system performance from around the world. The catalog contains metadata for hundreds of thousands of data sources including surveys, censuses, vital registration systems, disease registries, and scientific studies from virtually every country. What makes GHDx particularly powerful is its role as the data backbone for the Global Burden of Disease study, one of the largest and most influential epidemiological research projects ever undertaken. Users can search by topic, geography, time period, or data source type, and many entries include direct links to the original data or instructions on how to access it.