Public Health Profiles provides access to a wide range of health and health related data. Data is organised under profiles such as determinants of health; public health outcomes; child and maternal health etc.
WHO: Health data and statistics WHO's annual World Health Statistics reports present the most recent health statistics for the WHO Member States and each edition supersedes the previous one.
UN Global Issues Website offers an overview of some of these issues, and links to other resources, where you can get additional information.