TABLE 5.

Summary of coenrollments.

Study	Enrolled
Alzheimer’s Disease Neuroimaging Initiative 3-Brain Health Registry (ADNI3-BHR)	114
Biomarker prediction study	864
Brain Health Registry-Affect: UCSF MAC Collaboration to Study Emotionality	10233
Brain Health Registry-GenePool Study	1690
Brain Health Registry-Imaging Dementia — Evidence for Amyloid Scanning	981
Buck Institute	76
Cognition After Surgery & Anesthesia-Brain Health Registry	22
Community Engaged Digital Alzheimer’s Research (CEDAR)	384
Electric validation of online methods to predict and monitor cognitive decline	152
Head Impact&Trauma Surveillance Study (HITSS)	1000
Healthy Brain Initiative-Brain Health Registry (HBI-BHR)/ageHAPPY (Healthy Ageing Project Population Youth-senior)	4330
Memory assessment results initiative	380
Mobile toolbox study	7161
Online neuropsychological test validation project with imaging pilot	550
Striving together to prevent & treat Alzheimer’s disease	169
Study to Evaluate Amyloid in Blood and Imaging Related to Dementia-Brain Health Registry	165
Veteran Brain Health Registry	7
Total	28,278