Health Behaviour in School-aged Children (HBSC), a WHO collaborative cross-national study, has provided information about the health, well-being, social environment and health behaviour of 11-, 13- and 15-year-old boys and girls for over 30 years.

Although the countries of Eastern Europe and Central Asia are not affected to the same extent as other world regions, adolescent pregnancy is a major challenge in parts of the region, and in particular among some population groups.