The National Institute for Health and Welfare (THL) is a research and development institute under the Finnish Ministry of Social Affairs and Health. THL seeks to serve the broader society in addition to the scientific community, actors in the field and decision-makers in central government and municipalities. The aim is to promote health and welfare in Finland.
THL's functions are to promote the welfare and health of the population, to prevent diseases and social problems and to develop social and health services. THL pursues and carries out its objectives by means of research, development activities, official tasks, steering through information as well as international co-operation. In its capacity as the statutory statistical authority for health and welfare, THL maintains and promotes the use of a strong knowledge base within the field.