Kaplan-Meier survival curves were constructed in order to present the cumulative probability by age of men having had first sex for oral, vaginal and anal sex. All statistical analyses were conducted using Stata V.
The median age of participants was One hundred and forty-five The median age at first oral sex was Figure 1 shows the cumulative probability of men in the study and age at first oral, first vaginal and first anal sex.
For oral sex, This increased to For vaginal sex, For anal sex, 2. This increased to 7. Cumulative probability of teenage heterosexual boys and age at first oral, first vaginal and first anal sex with females.
Of the men, None had anal sex only figure 2. Among those who had engaged in oral sex, the median number of female partners for oral sex was four IQR: Of the Among those who had ever engaged in vaginal sex, the median number of female partners for vaginal sex was the same as for oral sex: Among those who had engaged in anal sex with women, the median number of female partners for anal sex was one IQR: Of the 37 Men who had ever engaged in anal sex were significantly more likely to have had five or more lifetime female partners for oral and vaginal sex OR: A total of female partners were reported by men who had vaginal sex with a woman: This is the first study that provides data on the early sexual experiences of teenage heterosexual boys in Australia including the sequence and timing of first oral, vaginal and anal sex experiences with women.
We found most teenage boys, who had a median age of 19, followed a pattern of engaging in oral sex first followed by vaginal sex some months later, or initiating both sexual acts at the same time. This was more likely among those who had higher numbers of lifetime sex partners for oral and vaginal sex.
There are several limitations to this study that should be noted. The majority of men were recruited from sexual health clinics in Australia which may have biased towards more sexually active men, hence the reported behaviours may not be representative of all teenage heterosexual boys in Australia.
The proportion of men ever having oral and vaginal sex in our study is higher than the national community-based surveys that have been conducted in Australia 14 and the UK.
Sexual practices and condom use with regular or casual partners may be different and further studies are required. Lastly, self-reporting and recall bias may have occurred in this study which requires participants to recall their first sexual activity. This finding is consistent with a previous study in Baltimore.
In Australia, school-based sex education is primarily delivered between year 7 aged 12—13 years and year 10 aged 15—16 years. However, sex education information in Australia is mainly focused on biology and contraception, 28 with less focus on STIs, relationships and sexuality. Furthermore, sexual practices other than penile—vaginal sex, such as oral and anal sex, may be considered taboo and hence are not covered in current sex education programme despite the frequency with which young people engage in these activities, and the risks they may pose.
We would like to thank Melbourne Sexual Health Centre clinic staff and staff at other clinics for their support including: Eric Chow and Rebecca Wigan performed the data analyses. All authors helped to interpret results and reviewed the manuscript for intellectual content and approved the final version of the manuscript.
All other authors have no conflicts of interest to declare. Provenance and peer review: Not commissioned; externally peer reviewed. No additional data are available. National Center for Biotechnology Information , U.
Published online Oct No commercial use is permitted unless otherwise expressly granted. Abstract Objective There are limited data on the patterns of early sexual behaviours among Australian teenage heterosexual boys. Design A cross-sectional survey between and Setting Major sexual health clinics and community sources across Australia.
Participants Heterosexual men aged 17—19 years. Results There were men in the study with a median age of Conclusions These data provide insights into the trajectory of sexual behaviours experienced by teenage heterosexual boys following sexual debut, findings which can inform programme promoting sexual health among teenage boys.
Sexual behaviours, sexual trajectory, first sex, heterosexual, teenage, adolescent. Strengths and limitations of this study. The findings of this study are from young heterosexual men aged 17—19 years recruited in both clinic-based and community-based settings. The majority of men were recruited from sexual health clinics which may have biased towards more sexually active men.
Methods Study participants Men were eligible for the study if they 1 were aged between 17 and 19 years, 2 reported no sexual contact with another man in the previous 12 months and 3 were residents in Australia from the age of 12 or younger. Study design and setting This study employed both clinic-based and community-based recruitment to establish a more representative sample. Table 1 Characteristics and sexual behaviours reported by heterosexual teenage boys. Demographic characteristics Age, median IQR Open in a separate window.
Age and sequence at first sexual experiences The median age at first oral sex was Table 2 Patterns of sexual trajectories among teenage boys. Sexual practices during the previous 12 months and over lifetime Of the men, Age of female partners A total of female partners were reported by men who had vaginal sex with a woman: Discussion This is the first study that provides data on the early sexual experiences of teenage heterosexual boys in Australia including the sequence and timing of first oral, vaginal and anal sex experiences with women.
Supplementary Material Reviewer comments: Click here to view. Acknowledgments We would like to thank Melbourne Sexual Health Centre clinic staff and staff at other clinics for their support including: Igra V, Irwin CE.
Theories of Adolescent Risk-Taking Behavior: First vaginal intercourse and oral sex among a representative sample of Australian adults: QLife national telephone and web counselling service for lesbian, gay, bisexual, trans and intersex LGBTI people, families and friends. ReachOut helps under 25s with everyday questions through to tough times.
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