“What Works”: systematic review of the “FRIENDS for Life” programme as a universal school-based intervention programme for the prevention of child and youth anxiety

Mental health disorders are currently the leading cause of disability among young people, internalising disorders such as anxiety and depression representing the most predominant mental health problems experienced. Given the high prevalence rates, low rates of treatment and associated adverse effects on social, emotional and academic functioning, the need to prevent the development of anxiety disorders in children and adolescents is paramount. The FRIENDS for Life intervention programme has been endorsed by the World Health Organisation as an evidence based programme effective for the prevention of child and youth anxiety. The purpose of this article is to systematically review the research base surrounding the FRIENDS for Life programme. All reviewed studies found that the programme had a positive impact on primary anxiety outcome measures compared to control groups, with small to medium effect sizes reported. However, a number of methodological and design concerns were identified across studies. Further quality school-based research is needed to ameliorate these challenges.