Need help now?

We don’t provide mental health advice, counselling, or treatment. If you or someone you know is in crisis, contact your local community crisis team. You can also reach out to the Indigenous Hope for Wellness Help Line 1-855-242-3310, the Black Youth Helpline 1-833-294-8650, or Kids Help Phone 1-800-668-6868.

Our website uses cookies to provide a better experience for you. If you wish, you can turn off cookies using your web browser’s privacy functions.

The importance of prevention and early intervention

In Ontario, an estimated one in five children and youth experience a mental health disorder. Dedicated, coordinated, high-quality prevention and early intervention services have the potential to influence these rates towards more positive outcomes for young people. School is an excellent place to provide prevention services, as these supports can be offered in a low-barrier, non-stigmatizing manner in the setting where young people spend most of each day. Further, early intervention services provided at school often keep mental health concerns from escalating and may reduce the need for more intensive supports. Good mental health and well-being facilitates and supports student engagement at school, regular attendance, learning and achievement.

What the research tells us

Why this is important

When school mental health professionals intervene early using evidence-informed protocols, they help reduce the impact of mild to moderate mental health problems and prevent them from escalating.

Prevention and early intervention ensure that support begins as soon as a student starts to experience difficulties. To learn more about noticing changes that may signal a mental health concern, and supporting mental health concerns like anxiety, mood and attention in the school environment, visit Supporting mental health concerns in the school environment.

Brownlie, E., Beitchman, J. H., Chaim, G., Wolfe, D. A., Rush, B., & Henderson, J. (2018). Early adolescent substance use and mental health problems and service utilisation in a school-based sample. The Canadian Journal of Psychiatry64(2), 116–125. https://doi.org/10.1177/0706743718784935 

Cohen, K. A., Ito, S., Ahuvia, I. L., Yang, Y., Zhang, Y., Renshaw, T. L., Larson, M., Cook, C., Hill, S., Liao, J., Rapoport, A., Smock, A., Yang, M., & Schleider, J. L. (2024). Brief School-Based Interventions Targeting Student Mental Health or Well-Being: A Systematic Review and Meta-Analysis. Clinical Child and Family Psychology Review27(3), 732–806. https://doi.org/10.1007/s10567-024-00487-2 

Goodyear-Smith, F., Martel, R., Darragh, M., Warren, J., Thabrew, H., & Clark, T. C. (2017). Screening for risky behaviour and mental health in young people: the YouthCHAT programme. Public Health Reviews38(1), 20. https://doi.org/10.1186/s40985-017-0068-1 

Groenman, A. P., Janssen, T. W., & Oosterlaan, J. (2017). Childhood Psychiatric Disorders as Risk factor for subsequent Substance abuse: A Meta-Analysis. Journal of the American Academy of Child & Adolescent Psychiatry56(7), 556–569. https://doi.org/10.1016/j.jaac.2017.05.004 

McGorry, P. D., & Mei, C. (2018). Early intervention in youth mental health: progress and future directions. Evidence-Based Mental Health21(4), 182–184. https://doi.org/10.1136/ebmental-2018-300060 

Patel, V., Flisher, A. J., Hetrick, S., & McGorry, P. (2007). Mental health of young people: a global public-health challenge. The Lancet369(9569), 1302–1313. https://doi.org/10.1016/s0140-6736(07)60368-7 

Sorgenfrei, M. (2021). Adolescent mental health: A systematic review on the effectiveness of school-based interventions. In Early Intervention Foundationhttps://www.eif.org.uk/report/adolescent-mental-health-a-systematic-review-on-the-effectiveness-of-school-based-interventions 

Zhang, Q., Wang, J., & Neitzel, A. (2022). School-based Mental health interventions Targeting depression or Anxiety: A meta-analysis of rigorous randomized controlled trials for school-aged children and adolescents. Journal of Youth and Adolescence52(1), 195–217. https://doi.org/10.1007/s10964-022-01684-4 

What can we help you find?