Resumen

In 1993, the monitoring of behaviors related to the transmission of sexually transmitted infections (STIs) and HIV began in Catalonia as part of the Integrated Epidemiological Surveillance of HIV/STI. Within the monitoring of ITS, in 2007, starting cross-bio-behavioral studies in order to monitor the prevalence of chlamydia infection and behaviors associated with its transmission among young people: youth attended at sexual and reproductive health centers (ASSIR) and youth care centers and young inmates in prison. The purpose of the present studies is to describe the general framework of studies monitoring the prevalence of chlamydia in young sentinel populations carried out in Catalonia, and in particular to improve knowledge about the vulnerability of young people against this infection. In this sense, the evolution of the prevalence of chlamydia and its demographic and behavioral determinants in young people will be key to developing more effective preventive interventions adapted to the reality of risk practices they perform. Six publications that are based on the statistical exploitation of the data collected in studies monitoring bio-behavioral CEEISCAT done in these populations since 2007. First, it includes a description of the prevalence of chlamydia and its trend among young people in Catalonia and associated risk behaviors. Articles 1, 2 and 3 show an increase in chlamydia prevalence and risk behaviors in this group. Similarly analyze risk behaviors associated with infection getting that age and become foreign factors in both populations studied while adding concurrency in youth attended at ASSIR and the time spent in prison among young prisoners (Article 3). In the fourth article, we analyze the feasibility of alternative chlamydia screening clinical environment sampling at home, showing that it is a viable strategy to capture a group of people that otherwise would not be caught classic health care system. It describes the agreement between sexual partners tested positive for these two screening strategies where highlights the importance of providing chlamydia test both men and women. We analyze the reinfection rate of chlamydia and its determinants in the fifth article and finally determine the optimal time to test young people in prison last article where it is determined at the time of entry into the prison when necessary make chlamydia screening because prisoners have both chlamydia prevalence as higher risk behaviors. The results generated recommends chlamydia testing routinely offered to young people as part of a holistic approach to sexual health, making opportunistic screening in both the clinical setting at EU level as a booster activity detection is intended to perform regularly from health services and to attract a greater number of young people, without forgetting that the primary prevention through campaigns to promote safe sex and special attention to sexual health and research and managemen