Last updated on 08/14/2026

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

994

Plasma available

984

DNA available

994

RNA available

95

PBMC available

982

Urine available

583

Microbiota available

12

CSF available

Misc.

60

Couples

17

Families

66

DBS

355

Brain MRI at UC¹

144

DaTscan

49

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