EHIS is a health survey conducted every five years to collect and compare health data between European countries. EHIS is used as a data source for health and social policy indicators such as the European Core Health Indicators (ECHI) or indicators of the health and long-term care strand (EU social indicators). 

In 2014, the Directorate of Health of Luxembourg asked the Luxembourg Institute of Health (LIH) to carry out a cross-sectional population-based survey on the health of the resident population in Luxembourg (EHIS-LUX) in order to better understand the current health status of residents of the Grand Duchy of Luxembourg. Five years later, in 2019, EHIS-LUX was launched again to analyse at national level the trends in results over time and to compare the results with those of the other European countries which organise the same survey defined by Eurostat.