The International epidemiology Databases to Evaluate AIDS (IeDEA) is an international research consortium of 382 HIV care and treatment clinics in 44 countries across seven world regions: the Asia-Pacific; the Caribbean, Central and South America; Central Africa; East Africa; Southern Africa; West Africa; and North America. IeDEA collects and harmonizes longitudinal patient data, generating large data sets that can be used to streamline HIV/AIDS research and address high priority research questions.