'Not enough' teenagers are using condoms
More teenagers need to wear condoms before engaging in sexual activity.
According to research carried out by the University of Gothenburg, on behalf of the Swedish Institute for Communicable Disease Control, youngsters are 16 when they first engage in sex.
Some 15,000 young people between the ages of 15 and 29 were quizzed across Sweden as part of the study.
Ronny Heikki Tikkanen, one of the investigators - who has also worked at the University of Texas Health Science Center - said: "The fact that so many don't use condoms, even though they know that they offer protection ... shows how important it is to work on attitudes and behaviour."
The report also found those who take risks with alcohol and drugs are also more likely do so when it comes to fornication.
Margareta Forsberg, research and development manager at the Swedish Institute for Communicable Disease Control, said more needs to be done to identify individuals who are most at threat of having unprotected sex.