Prevalence Rates of Sexual Behaviors, Condom Use, and Contraception Among Australian Heterosexual Adolescents.

BACKGROUND: The development of effective health promotion practices and education programs to reduce rates of sexually transmitted infections and unintended pregnancy requires accurate, up-to-date information about young people's sexual behaviors. AIMS: To provide prevalence rates on sexual behaviors and condom and contraceptive use for Australian year 10-12 heterosexual students in a nationally representative sample. METHODS: A nationally representative sample of 2,301 male and 2,055 female year 10 through 12 heterosexual students were recruited to an online survey about their lifetime sexual behaviors and condom and contraceptive use. Means and 95% confidence intervals of weighted data, based on the national census, were reported. OUTCOMES: The main outcomes of this study were prevalence of sexual behaviors by gender (excluding trans and gender diverse) and prevalence of contraception and condom use among sexually active students by gender. RESULTS: The most common sexual behavior was masturbation (96.3% of male students, 78.9% of female students), and the least common behavior was anal or vaginal sex (43.7% of male students, 48.5% of female students). Of the sexually active students, condoms were used by 78.1% of male students and 77.5% of female students at first sexual experience and by 65.1% of male students and 56.8% of female students at their most recent sexual experience, whereas 91.6% of male students and 92.3% of female students used some form of contraception at most recent sexual experience. CLINICAL TRANSLATION: Results provide up-to-date information on the practices clinicians who are likely to encounter with heterosexual cisgender adolescent populations in Australia. STRENGTHS & LIMITAITONS: The study represents the largest representative cohort of adolescents in Australia to date. However, comparisons with previous representative studies were limited owing to differing samples by age and culture. CONCLUSIONS: Compared with earlier Australian studies, young heterosexual cisgender people today engage in slightly less oral and penetrative sexual behaviors, with the exception of more women receiving oral sex, and are generally consistent in condom and contraceptive use. Fisher CM, Kauer S, Mikolajczak G, et al. Prevalence Rates of Sexual Behaviors, Condom Use, and Contraception Among Australian Heterosexual Adolescents. J Sex Med 2020;17:2313-2321.

Study Protocol: 6th National Survey of Australian Secondary Students and Adolescent Sexual Health, 2018.

Introduction: Since 1992 the Australian Government has funded a periodic national survey of HIV and Sexually Transmissible Infection (STI) knowledge and sexual risk behavior among secondary school students. Adolescents continue to be a priority population in public health efforts to reduce rates of STIs in Australia. The purpose of the survey is to inform progress on national strategic sexual health priorities. The results are used by federal and state/territory government agencies, youth-serving community organizations and health educators to improve knowledge, promote healthy sexual behaviors and target educational efforts aimed at communicating public health messages to young people. Materials and Equipment: The 6th survey entitled the "National Survey of Secondary Students and Adolescent Sexual Health" was conducted online in 2018 among 14-18 year olds living in Australia. The anonymous self-complete survey contained up to 286 items assessing three primary domains of knowledge, behaviors and education experiences. Factual knowledge measures covered HIV transmission and STI knowledge around transmission and prevention covering gonorrhea, Chlamydia, syphilis, hepatitis, herpes, and HPV. Behavioral measures examined perceived susceptibility, peer norms, protective behaviors, age of onset for various behaviors, reasons for not being sexually active yet, and/or sexual histories with additional detail on most recent sexual event. The 6th survey was completed by 8,400 Australian adolescents a represents a broad cross-section by age, gender, year in school, type of school (e.g., government, Catholic), and state/territory which closely matched census data on these strata. The one-of-a-kind survey instrument, grounded in public health theories, may prove valuable for public health researchers. Expected Impact of the Study on Public Health: Findings from the 6th National Survey of Secondary Students and Adolescent Sexual Health will contribute important insights into current knowledge, behaviors and educational experiences of young people. Results, similar to previous iterations of the survey, will inform public health practitioners, policymakers, educators, and advocates for the sexual health and well-being of young Australians. Results may assist sexual health services to align with broader public health goals articulated in the national HIV and STI strategies aimed to reduce the burden of disease and improve the quality of sexual lives of young Australians.