National Research Council Twin Registry (NAS-NRC)
NAS-NRC was set up to investigate the determinants of veterans' health using a twin design. Participants were white male multiple births recruited from all states except Arizona, Connecticut, Delaware, Georgia, Maine, Missouri, Utah, Vermont, and the city of New Orleans. Veterans Administration (VA) records were also used to find twin pairs born after 1917, where both members served in the Armed Forces. This led to a baseline cohort of almost 16,000 twin pairs and almost 32,000 individual participants. Participants were from various branches of the armed forces, including the army, air force, navy, marines, and coastguard, and had served in various conflicts, including World War II and the Korean War.
Study design
Cohort - twin
Number of participants at first data collection
31,848 (participants)
Age at first data collection
15 - 33 years (participants)
Participant year of birth
Varied (participants)
Participant sex
Male
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
1965
Primary Institutions
National Academies of Sciences, Engineering, and Medicine (NASEM)
University of Southern California (USC)
Profile paper DOI
Funders
Department of Health and Human Services (HHS)
National Institute on Aging (NIA)
National Institutes of Health (NIH)
Ongoing?
Yes
Data types collected
- Computer, paper or task testing (e.g. cognitive testing, theory of mind doll task, attention computer tasks)
- Interview – phone
- Physical or biological assessment (e.g. blood, saliva, gait, grip strength, anthropometry)
- Self-report questionnaire – paper or computer assisted
- None
- Magnetic Resonance Imaging (MRI)
- Employer data
- Healthcare data
- Mortality data
Engagement
Keywords
Consortia and dataset groups
