Report on the National Size Estimation of the Most at Risk Populations for HIV in Sri Lanka

This report describes the process and the results of the size estimation study of key populations (KPs) in Sri Lanka, which was based on the methods of the geographical mapping with enumeration and the multiplier, as well as the results of the consensus-building workshop that utilised the Delphi process to arrive at the final population size estimates (PSE). Following KPs were included in the size estimation study: female sex workers (FSWs), men who have sex with men (MSM), male sex workers (MSW), transwomen, people who inject drugs (PWID) and beach boys (BBs).