Abstract
Between May and July 2017, the IYLL periodic survey recruited 2,831 heterosexually-identified young people aged 15-29 years and living in New South Wales (NSW). On average, participants were 20.9 years old with half of the sample aged 15-19 years. More female than male participants responded to the survey (60.0% versus 40.0%). Of the participants, two thirds (66.8%) reported having had oral, vaginal or anal sex and 33.2% never had sex.
As in the 2016 IYLL survey, participants in the 2017 survey were asked about their knowledge of sexually transmissible infections (STIs), their sexual health-related attitudes, their condom use and testing for STIs or human immunodeficiency virus (HIV) as well as their engagement with and perception of sexual health promotion initiatives.