The Lao Social Indicator Survey II (LSIS II) was carried out in 2017 by Lao Statistics Bureau (LSB) in collaboration with Ministry of Health and Ministry of Education and Sport, as part of the Global Multiple Indicator Cluster Survey (MICS) Programme. Technical support was provided by the United Nations Children’s Fund (UNICEF), with government funding and financial support of UNICEF and United Nations Population Fund (UNFPA), European Union (EU), Luxembourg Government, United States Agency for International (USAID), Swiss Development Cooperation (SDC), World Food Programme (WFP), and United Nations Development Programmes (UNDP), World Health Organisation (WHO) and Japanese International Cooperation Agency (JICA). USAID provided technical support for the data collection and analysis on anaemia.