Three-City Study (3C Study)
3C study recruited elderly adults from three areas of France: Bordeaux in the South West, Dijon in the North East, and Montpellier in the South East. Eligible participants were at least 65 years old and not institutionalized. This resulted in a baseline cohort of over 9,600 individuals.
Study design
Cohort
Number of participants at first data collection
9,693 (participants)
Age at first data collection
≥ 65 years (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
1999
Primary Institutions
Institut national de la santé et de la recherche médicale (Inserm)
University of Bordeaux (Université de Bordeaux)
Profile paper DOI
Funders
Medical Research Foundation (Fondation pour la Recherche Médicale, FRM)
National Institute of Health and Medical Research (Institut National de la Santé et de la Recherche Médicale, INSERM)
Sanofi-Synthélabo (now known as Sanofi)
University of Bordeaux
Ongoing?
No
Data types collected
- Activity log (e.g. food, sleep, exercise)
- Computer, paper or task testing (e.g. cognitive testing, theory of mind doll task, attention computer tasks)
- Interview – face-to-face
- Secondary data
- Self-report questionnaire – unspecified
- None
- Magnetic Resonance Imaging (MRI)
- Healthcare data
Engagement
Keywords
