Launched in 2001, the TSI study is a longitudinal study of a small cohort of older adults above the age of 60 years, refreshed every 5 years, taking place in the United States of America. In semiannual assessments, participants are evaluated for their psychological, immune, and cognitive health. Around 300 participants were recruited and approximately 60% of the sample are female.
Study design
Cohort
Number of participants at first data collection
315 (participants)
Recruitment is ongoing
Age at first data collection
≥ 60 years (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
2001
Primary Institutions
Oregon State University
Profile paper DOI
Not available
Funders
National Institute on Aging (NIA)
Ongoing?
Yes
Data types collected
Engagement
Keywords