The Health Behaviour in School-aged Children (HBSC) study has informed the development and implementation of policy for children and adolescents for over three decades. The growing recognition that adolescence is a critical period for later health and well-being has highlighted the need for, and importance of timely and accurate data. Every 4 years, the HBSC study provides evidence on health behaviors, health outcomes, and social environments of boys and girls across Europe and North America. To maximize the impact of evidence, the HBSC study has a working Policy Development Group that cultivates relationships with key stakeholders, disseminates widely HBSC research, and facilitates discussion and cross-fertilization of ideas and priorities. To date, HBSC data have been central to health promotion efforts and developments in practice, policy, and legislation at both national and international levels.
National Policy ImpactNational governments and other national stakeholders have used HBSC data to identify priority areas for adolescent health, set targets for health improvement, and monitor the impact of policies and programs. This has led to system changes and targeted policy actions in areas of primary public health concerns such as substance use, healthy lifestyles, and adolescent health and well-being.
Delivering system change in WalesConflicts of interest: The authors have no conflicts of interest to disclose. Disclaimer: This supplement was supported by the World Health Organization European Office and the University of Glasgow. The articles have been peerreviewed and edited by the editorial staff of the Journal of Adolescent Health. The opinions or views expressed in this supplement are those of the authors and do not necessarily represent the official position of the funder. MWW is a WHO staff member. The views expressed are his and do not necessarily reflect the positions and policies of the World Health Organization.