MAAS is a longitudinal study investigating cognitive aging in a cohort of nearly 1,900 initially healthy participants aged 24-81 years at baseline. The sample was drawn from a patient register for 15 general practices in the province of Limburg, the Netherlands. Since 1992, the participants have been followed-up at fixed intervals over a period of 12 years with respect to their health and neurocognitive status. As of 2023, 719 participants were included in the 25 year follow-up.
Study design
Cohort
Number of participants at first data collection
1,869 (participants)
Age at first data collection
24 - 81 years (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
1993
Primary Institutions
Maastricht University (Universiteit Maastricht, UM)
Profile paper DOI
Funders
Dutch Research Council (Nederlandse Organisatie voor Wetenschappelijk Onderzoek, NWO)
Maastricht University
Ongoing?
Yes
Data types collected
Engagement
Keywords
Consortia and dataset groups