Belfast Youth Development Study (BYDS)
BYDS investigates substance use behaviours from early adolescence to adulthood. Between 2000 and 2001, the study recruited and assessed over 3,800 pupils in their first year of post-primary education, aged 10 to 11 years, from over 40 schools in Northern Ireland (United Kingdom). Participants were assessed yearly until 2005, then again in 2007, 2010, and 2025.
Study design
Cohort, Cohort - birth
Number of participants at first data collection
3,834 (participants)
Age at first data collection
10 - 11 years (participants)
Participant year of birth
1989 - 1991 (participants)
Participant sex
All
Representative sample at baseline?
No
Sample features
Countries
Year of first data collection
2000
Primary Institutions
Queen's University of Belfast (QUB)
Profile paper DOI
Funders
Alcohol Change UK
Economic and Social Research Council (ESRC)
National Institute for Health and Care Research (NIHR)
Public Health Agency (PHA)
United Kingdom Government
Ongoing?
Yes
Data types collected
- Interview – face-to-face
- Self-completed questionnaire – paper or computer assisted
- Self-completed questionnaire – online
- Interviews or focus groups
- None
- Geographic, spatial & environmental data
Engagement
Keywords
