Participant Follow-up / Drop-out

The chart below illustrates the longitudinal follow-up of the cohort studies and thereby inherently the participant drop-out over time. We display the proportion of baseline study participants assessed per month in study. Respectively, the inverse of this proportion denotes the drop-out. All charts on this page enable users to zoom in and out and real values can be explored by hovering along the x-axis. Furthermore, you can filter cohorts by selecting them in the legend.


Biomarker-specific Follow-up

Since not every participant underwent all data collection procedures, each of the following charts shows the proportion of baseline study participants assessed for specific Alzheimer's disease biomarkers over time.


Cognitive Assessments


CDR
CDRSB
MMSE

Cerebrospinal Fluid Biomarkers


A-beta
tTau
pTau

Magnetic Resonance Imaging


Hippocampus