RWEpi is a multidisciplinary team that includes epidemiologists, statisticians, health professionals, data scientists and pre- and post-doctoral researchers with extensive experience in the analysis and interpretation of real-world data. The main objective is to generate reliable scientific evidence by using routinely collected data from different health system settings. The group participates in national and international studies focused on understanding the natural history and determinants of multiple diseases, the safety and efficacy of new drugs and vaccines, and the implementation of methods to analyze and evaluate the quality of real-world data. It also develops research in the pediatric population and pregnant women, with the creation of a large cohort linked to the electronic medical record of the primary care of Catalonia of mothers and children as well as on health inequalities and the role of lifestyle and environmental exposures on health.