Danish Longitudinal Study of Ageing (DLSA)
The DLSA is a prospective cohort study of individuals in Denmark. At baseline, a random sample was drawn from the Danish Population Registry among six selected cohorts (born 1920, 1925, 1930, 1935, 1940 and 1945), aged 52 to 77 years and each cohort was sampled with the same weight as in the general population. Participants are followed up every five years and a new cohort of 52-year olds is added in each wave. In the first and second wave, in 1997 and 2002, the sample was restricted to individuals with Danish citizenship. From the third wave in 2007 and onwards, the sample has been expanded to all individuals residing in Denmark, and immigrants from non-Western countries were oversampled in order to increase their representation in the study.
Study design
Cohort - open
Number of participants at first data collection
5,864 (participants)
Recruitment is ongoing
Age at first data collection
52 years (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
The Danish population at the time of recruitment for each study wave.
Sample features
Country
Year of first data collection
1997
Primary Institutions
Danish Centre for Social Science Research (Nationale Forsknings- og Analysecenter for Velfærd, VIVE)
Links
No website available
Profile paper DOI
Funders
Danish Center for Social Science Research (VIVE)
Danish Health Foundation
Danish Institute for Local Government Studies (AKF)
Danish National Centre for Social Research (SFI)
Ministry of Health
Ongoing?
Yes
Data types collected
- Interview – online
- Interview – phone
- Secondary data
- None
- None
- Education data
- Healthcare data
- Mortality data
- Other government data
- Tax, income & benefit data
Engagement
Keywords
