Edgardh K
Department of Venhälsan, Gay Men's Health Clinic, Karolinska Institute at Söder Hospital, Stockholm, Sweden.
Acta Paediatr. 2002;91(9):985-91. doi: 10.1080/080352502760272704.
To describe sexual behaviour as reported by 17-year-old boys in Sweden.
The national cross-sectional SAM 73-90 questionnaire survey was performed in 1990, and comprised 2% of students and school non-attenders born in 1973. The respondents included 814 students and 92 non-students, response rates 90.6% and 40.2%, respectively. Data from the two groups are treated separately.
In the student group, 54.2% of boys had experienced vaginal intercourse and 16.7% were "early starters" with coitarche before 15 y of age. Independent predictors for coital experience were the vocational study programme OR (odds ratio) 1.91 (95% CI 1.31-2.78), early puberty OR 1.69 (95% CI 1.11-2.57), use of tobacco OR 5.32 (95% CI 2.43-11.7) and alcohol OR 4.09 (2.79-5.98). Sexually transmitted infections (STIs) were reported by 4.1% of coitally active student boys, and impregnating a girlfriend by 4.3%. Of the early starters, 14.6% reported having more than 10 sex partners as compared with 2.5% of the later starters (p < 0.0001) and this was predictive of STI, OR 5.4 (95% CI 1.5-19.7). First-date intercourse more than twice was predictive of pregnancy, OR 14.4 (95% CI 3.8-54.5). Among school non-attenders, 74.2% reported coital experience, 33.7% were early starters, and 12.5% had impregnated a girl.
Boys' early sexual experience was related to early puberty, and to general adolescent risk-taking behaviour. Early coitarche per se was not predictive of STI or pregnancy, but the associated high number of "lifetime" sexual partners and first-date intercourse were predictive factors. School non-attenders constituted a group at risk.
描述瑞典17岁男孩报告的性行为。
1990年开展了全国性横断面SAM 73 - 90问卷调查，涵盖了1973年出生的学生和非在校学生中的2%。受访者包括814名学生和92名非学生，回复率分别为90.6%和40.2%。两组数据分别处理。
在学生组中，54.2%的男孩有过阴道性交经历，16.7%是“早熟者”，在15岁前开始有首次性交。性交经历的独立预测因素包括职业学习计划，优势比（OR）为1.91（95%置信区间1.31 - 2.78）；青春期提前，OR为1.69（95%置信区间1.11 - 2.57）；吸烟，OR为5.32（95%置信区间2.43 - 11.7）；饮酒，OR为4.09（2.79 - 5.98）。有性交行为的学生男孩中4.1%报告有性传播感染，4.3%使女友怀孕。在早熟者中，14.6%报告有超过10个性伴侣，而晚熟者中这一比例为2.5%（p < 0.0001），这是性传播感染的预测因素，OR为5.4（95%置信区间1.5 - 19.7）。首次约会性交超过两次是怀孕的预测因素，OR为14.4（95%置信区间3.8 - 54.5）。在非在校学生中，74.2%报告有性交经历，33.7%是早熟者，12.5%使女孩怀孕。
男孩的早期性经历与青春期提前以及青少年一般的冒险行为有关。首次性交本身并非性传播感染或怀孕的预测因素，但与之相关的大量“终身”性伴侣和首次约会性交是预测因素。非在校学生是一个高危群体。
