FinnTwin16 (FT16)
The Finnish Twin Cohort comprises three different cohorts: the Older Twin Cohort established in the 1970s, as well as the FinnTwin12 and FT16, both initiated in the 1990s. The FT16 study was initiated in 1991 with a baseline assessment of five consecutive birth cohorts of 16-year-old twins born during 1974 to 1979 and ascertained from the Central Population Register of Finland. FT16 originally aimed to identify the genetic and environmental precursors of alcoholism, but later the scope of the project expanded to studying the determinants of various health-related behaviours and diseases in different stages of life.
Study design
Cohort - birth, Cohort - primary caregiver and child, Cohort - twin
Number of participants at first data collection
5,778 (participants)
2,749 (mothers)
2,482 (fathers)
1,228 (siblings)
Age at first data collection
16 - 17 years (participants)
Varied (mothers)
Varied (fathers)
Varied (siblings)
Participant year of birth
1974 - 1979 (participants)
Varied (mothers)
Varied (fathers)
Varied (siblings)
Participant sex
All
Representative sample at baseline?
Twin pairs born between 1974 and 1979 in Finland and their parents.
Sample features
Country
Year of first data collection
1991 - 1995
Primary Institutions
University of Helsinki (Helsingin yliopisto)
Profile paper DOI
Funders
Academy of Finland
European Commission
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
Ongoing?
Yes
Data types collected
- Computer, paper or task testing (e.g. cognitive testing, theory of mind doll task, attention computer tasks)
- Interview – face-to-face
- Physical environment assessment (e.g. pollution, mould)
- Physical or biological assessment (e.g. blood, saliva, gait, grip strength, anthropometry)
- Self-report questionnaire – online
- Self-report questionnaire – paper or computer assisted
- None
- Magnetic Resonance Imaging (MRI)
- None
Engagement
Keywords
Consortia and dataset groups
