Swedish adolescents' knowledge of sexually transmitted diseases and their attitudes to the condom.

In an attempt to assess the risk of AIDS infection in teenagers in Sweden a survey of adolescent sexual behaviour was conducted in Uppsala. Two hundred and nine students in the first form of an upper secondary school completed a questionnaire at the beginning of a lesson on family life. Half the female and 45% of the male students reported having had sexual intercourse. Forty per cent had not used contraception at their first intercourse and 23% reported no use of contraceptive at their most recent intercourse. The students considered that they had only a low risk of contracting a sexually transmitted disease. The use of condoms was relatively low and this has implications for the students' potential to contract a sexually transmitted disease.