The PTTS aimed to quantify variation in health factors experienced across three levels of shared exposure: specific to twin pairs, shared by all family members, and school- and community-level characteristics. The PTTS was a follow-up study of a subsample of participants from Project Talent (PT), a population-representative study of high school students in the United States of America, first assessed in 1960 and followed through 1974. The PTTS involved follow-up assessments between 2014 and 2019, collecting data from 2,253 individuals, including complete twin and triplet sets, and their non-twin siblings.
Study design
Cohort, Cohort - twin
Number of participants at first data collection
2,253 (participants)
Age at first data collection
Varied (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
1960 (PT baseline)
2014 (PTTS baseline)
Primary Institutions
American Institutes of Research (AIR)
Profile paper DOI
Funders
National Institute on Aging (NIA)
National Institutes of Health (NIH)
Ongoing?
No
Data types collected
Engagement
Keywords