Last updated on 10/27/2026

Participants by visit

Sex

Race/Ethnicity (self reported)

Age groups

Diagnosis

Parkinson’s disease dementia was defined as clinically diagnosed Parkinson’s disease dementia, or Parkinson’s disease with either a history of prescription of a cholinesterase inhibitor or memantine, or a Montreal Cognitive Assessment score below 19.

Participants with samples

1008

Plasma available

997

DNA available

1009

RNA available

104

PBMC available

996

Urine available

617

Microbiota available

12

CSF available

Misc.

60

Couples

19

Families

67

DBS

368

Brain MRI at UC¹

144

DaTscan

50

In UC Brain Donation

97

State-of-the-art brain MRI²

¹UC = University of Cincinnati
²T1 BRAVO, T2 Cube, T2 FLAIR Cube, SWAN QSM, all 3D; DWI TENSOR B-1000 40 directions Hyperband; and resting state fMRI 240nr 2TR, in addition to regular sequences (all extracted with GE Healthcare software).

Locations