Weiner E, Johansson I, Helmius G, Odlind V
Ups J Med Sci. 1984;89(2):171-7. doi: 10.3109/03009738409178477.
A questionnaire was offered to 181 sixteen-year-old boys (n = 88) and girls (n = 93) in different schools in the city of Uppsala. The questionnaire was introduced to the students by a nurse midwife during a regular lesson and included over 100 questions dealing partly with sexual education, attitudes towards sex and own experience of sex and contraception. Of the girls, 47% and of the boys, 31% answered that they had had intercourse. Twenty-eight per cent of the girls and 21.5% of the boys had had their first intercourse before the age of 15. Contraception was used at the first intercourse by 59% of the girls and by 70% of the boys. At the very first intercourse, the condom was the most commonly used contraceptive method. Increasing sexual experience changed the contraceptive pattern and at their last intercourse 48% of the girls were on the pill and 33% of the boys said that their girl friend was on the pill.
一份问卷被发放给乌普萨拉市不同学校的181名16岁男孩（n = 88）和女孩（n = 93）。问卷由一名助产护士在常规课程中向学生介绍，包含100多个问题，部分涉及性教育、对性的态度以及自身的性经历和避孕情况。女孩中有47%、男孩中有31%回答他们有过性交。28%的女孩和21.5%的男孩在15岁之前有过初次性交。59%的女孩和70%的男孩在初次性交时使用了避孕措施。在初次性交时，避孕套是最常用的避孕方法。性经历的增加改变了避孕方式，在最近一次性交时，48%的女孩在服用避孕药，33%的男孩表示他们的女朋友在服用避孕药。
