Abstract
Aim: The aim of this investigation was to study the development of sexual attitudes, behaviour and risk assessment in adolescents and young adults, 16—24 years, compared with older adults, 25—44 years, between 1989 and 2007. Methods: We conducted mailed questionnaire surveys in random samples of the Swedish general population in 1989, 1994, 1997, 2000, 2003, and 2007 (total n = 16,773). Each sample consisted of 4,000—6,000 participants, stratified by age. The overall participation rate for men was 54% and for women was 70%. Results: The likelihood of holding a restrained attitude to sexual intercourse outside of a stable relationship decreased significantly throughout the period of study, particularly for the 16—24 year olds. The odds ratio for more than two sexual partners and casual sexual intercourse without using a condom during the preceding 12 months increased significantly in the younger age group, particularly for young women. For women aged 16—24 years, the prevalence of several sexual partners and casual sexual intercourse without the use of a condom doubled between 1989 and 2007. In 2007 there was no difference in this respect between young men and young women. There were small changes in risk assessment associated with HIV infection during the study period. Conclusions: Sexual risk behaviour increased signficantly for 16—24 year olds, and particularly young women, during the study period. To reduce the risk of uncontrollable spread of sexually transmitted infections in this age group, it is imperative that condom use in risky sexual contact is encouraged.
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