Nina Buttmann1, Ann Nielsen1, Christian Munk1, Kirsten Frederiksen2, Kai-Li Liaw3, Susanne K Kjaer4. 1. Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark. 2. Statistics, Bioinformatics and Registries, Danish Cancer Society Research Center, Copenhagen, Denmark. 3. Merck Research Laboratories, North Wales, PA, USA. 4. Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark Department of Gynaecology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark susanne@cancer.dk.
Abstract
AIM: First intercourse at the age of 14 years or younger is usually considered high-risk behaviour for sexually transmitted infections (STIs). It has been linked to other types of risky behaviour in women, while conflicting results have been obtained for men. The aim of the study was to estimate the prevalence of first intercourse at a young age in various birth cohorts of men and to determine any association with later risky behaviour. METHODS: We studied 22,979 randomly selected men aged 18-45 years from the Danish general male population who responded to a self-administered questionnaire. Multiple sexual partners over a lifetime, multiple new sexual partners within the past 6 months, intercourse with a commercial sex worker, having an STI, binge drinking and current smoking were considered risky behaviour. RESULTS: First intercourse at the age of 14 years or younger was more prevalent in younger (14%) than in older (10%) birth cohorts and among men with shorter schooling. Young age at sexual debut was associated with a more than twofold increase in the risks for subsequent risky behaviour. CONCLUSIONS: More than 10% of Danish men first had sex at an early age, and this was closely related to subsequent risk-taking behaviour.
AIM: First intercourse at the age of 14 years or younger is usually considered high-risk behaviour for sexually transmitted infections (STIs). It has been linked to other types of risky behaviour in women, while conflicting results have been obtained for men. The aim of the study was to estimate the prevalence of first intercourse at a young age in various birth cohorts of men and to determine any association with later risky behaviour. METHODS: We studied 22,979 randomly selected men aged 18-45 years from the Danish general male population who responded to a self-administered questionnaire. Multiple sexual partners over a lifetime, multiple new sexual partners within the past 6 months, intercourse with a commercial sex worker, having an STI, binge drinking and current smoking were considered risky behaviour. RESULTS: First intercourse at the age of 14 years or younger was more prevalent in younger (14%) than in older (10%) birth cohorts and among men with shorter schooling. Young age at sexual debut was associated with a more than twofold increase in the risks for subsequent risky behaviour. CONCLUSIONS: More than 10% of Danish men first had sex at an early age, and this was closely related to subsequent risk-taking behaviour.
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