Longitudinal Study of Aging Danish Twins (LSADT)
The LSADT aimed to understand the causes of variations in survival, health, diseases, ability loss and cognitive functions among the elderly and the oldest-old. Participants were twins aged 70 years and older, recruited from registries in Denmark. In total, 4,700 individual twins, including more than 1,000 twin pairs, completed the baseline assessments, beginning in 1995. Assessments were conducted every 2 years until 2007, and new participants were added in 1997, 1999, and 2001. Participants were also followed up passively with linked healthcare and mortality data.
Study design
Cohort - twin, Cohort
Number of participants at first data collection
4,731 (participants)
Age at first data collection
≥ 70 years (participants)
Participant year of birth
1890 - 1930 (participants)
Participant sex
All
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
1995
Primary Institutions
Duke University
Links
cpha.duke.edu/research/longitudinal-study-aging-danish-twins
icpsr.umich.edu/web/NACDA/studies/21041
reporter.nih.gov/project-details/6098218
sdu.dk/en/forskning/dtr/researcher/data/lsadt_data
Profile paper DOI
Funders
Danish National Research Foundation (DNRF)
National Institute on Aging (NIA)
National Institutes of Health (NIH)
United States Department of Health and Human Services
University of Southern Denmark
Ongoing?
No
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 or biological assessment (e.g. blood, saliva, gait, grip strength, anthropometry)
- Secondary data
- None
- None
- Healthcare data
- Mortality data
Engagement
Keywords
