Data come from SELFY (Sexual and Emotional Life of Youths), a survey coordinated by researchers from the universities of Florence, Messina, and Padua. The survey was conducted in the first half of 2017 in 28 Italian universities to provide an updated portrayal of sexual and affective opinions and behaviour among Italian university students. The SELFY survey was almost identical to one (SIS - Sexuality of Italian Students) conducted 17 years previously. In 2000 and 2017, 4998 and 8094 students were surveyed, respectively. All respondents were attending Italian undergraduate courses in economics and statistics.
