Study Background
CoVenture10 is a pioneering longitudinal follow-up of the original CoVenture study about adolescent mental health and substance use. In CoVenture, 3800 high school students from Montreal shared their experiences, completed comprehensive assessments of mental health and cognition, and some also participated in workshops designed to build skills for navigating difficult emotions and situations (PreVenture®). This work has provided valuable insights into relationships between adolescent substance use and mental health, and has also influenced prevention strategies and public health policies.
The CoVenture10 follow-up study builds on this foundation by examining long-term outcomes of the original study participants who are now young adults. This study will deepen our understanding on how early adolescent experiences and interventions influence mental health, substance use, and everyday functioning in adulthood.
Key Highlights & Statistics:
Largest Youth Cohort in Greater Montreal
CoVenture began more than 10 years ago with 3800 high school students. CoVenture is one of Canada’s largest longitudinal studies on adolescent development, with repeated assessments from adolescence into adulthood.
Over a Decade of Discovery
CoVenture has made key contributions to science, including:
● Highlighting the impact of screen use and social media on mental health
● Applying machine learning to understand substance use risk
● Clarifying the impact of adolescent cannabis use on brain development and mental health
Real-World Impact
CoVenture’s findings of adolescent mental health and cognitive development have informed early prevention strategies across Canada and discussions in the United States Congress.
Findings from CoVenture have been discussed by:






Mapping Our Impact
Explore the neighborhoods where over 3,800 Montreal youth participated in the original CoVenture study. Each area on the map reflects the number of students who helped shape our understanding of adolescent development - and who continue to power this research a decade later.



