United States
- National Center for Health Statistics (NSHC)The National Center for Health Statistics (NCHS) is the nation’s principal health statistics agency, providing data to identify and address health issues. NCHS compiles statistical information to help guide health and health policy decisions. Collaborating with other public and private health partners, NCHS employs a variety of data collection mechanisms to obtain accurate information from multiple sources. This process provides a broad perspective to help us understand the population’s health, influences on health, and health outcomes.
Major Ongoing Survey Projects: 
National Health and Nutrition Examination Survey (NHANES)
The National Health and Nutrition Examination Survey (NHANES) is a program of studies designed to assess the health and nutritional status of adults and children in the United States. The survey is unique in that it combines interviews and physical examinations.
National Health Interview Survey (NHIS)
The National Health Interview Survey (NHIS) has monitored the health of the nation since 1957. NHIS data on a broad range of health topics are collected through personal household interviews. Survey results have been instrumental in providing data to track health status, health care access, and progress toward achieving national health objectives.
National Health Care Surveys (NHCS)
The National Health Care Surveys are designed to answer key questions of interest to health care policy makers, public health professionals, and researchers. These can include the factors that influence the use of health care resources, the quality of health care, including safety, and disparities in health care services provided to population subgroups in the United States.
World
- World Health Organization (WHO)The World Health Organization is the major international source for data on health and health care. Its Global Health Observatory (GHO) data covers figures on a country level on incidences of diseases and indicators of the quality of the health care system.
- National Health Service (England)NHS England publishes statistics on a range of health and care subjects. These statistics are used to inform debate, decision-making and research both within government and by the wider community.