Table 4.

Prevalence of elicited beliefs by sex

Belief	Total	Male (n=30)	Female (n=30)
Behavioral beliefs	%	%	%
“Bad things that would happen”
Concern for privacy	15.0	13.3	16.7
Being asked to participate in study with experimental drug or other treatment	40.0	50.0	30.0
Lack of transparency	3.3	3.3	3.3
Misuse or mismanagement of data	11.7	6.7	16.7
Confronting personal cognitive decline	10.0	13.3	6.7
Pressure to join study	8.3	6.7	10.0
Nothing or don’t know	20.0	20.0	20.0
“Good things that would happen”
Advance science or find a new discovery	60.0	60.0	60.0
Help others	40.0	40.0	33.3
Improve personal health or memory	21.7	16.7	26.7
Personal interest or novelty	21.7	20.0	23.3
Track personal progress or brain health over time	10.0	13.3	6.7
Important normative referents
Spouse or partner	23.0	20.0	13.3
Children	36.7	20.0	53.3
Siblings	23.3	33.3	13.3
Friends or neighbors	28.3	16.7	40.0
Extended family	21.7	20.0	23.3
Healthcare provider	5.0	6.7	3.3
Facilitators
Convenience	26.7	30.0	23.3
Modality	35.0	30.0	40.0
Information	36.7	40.0	33.3
Results transparency	1.67	0	3.3
Barriers
Enrolling would be demanding or difficult	10.0	13.3	6.7
Health problems	3.33	3.3	3.3
Inconvenient	23.3	36.7	10.0
Technology or computer	16.7	16.7	16.7
Transportation	6.7	0	13.3
Having to travel to a physical location	10.0	10.0	10.0
Lack of information	10.0	16.7	3.3
No access to test results	0	0	0
Medication side effects	5.0	6.7	3.3
Nothing or don’t know	18.3	16.7	20.0