Table 1.

Respondent’s characteristics

Respondent’s characteristics	Clinicians n = 100	Biomarker experts n = 37
Specialty	Neurologist 72%	Radiologist 24%
	Geriatrician 14%	Nuclear medicine physicians 49%
	Psychiatrist 18%	Laboratory physicians 27%
Role	Head of memory clinic 45%	Head of memory clinic 0%
	Staff 39%	Staff 0%
	Collaborator 7%	Collaborator 92%
	Other 9%	Other 8%
Years of experience in the field of neurodegenerative disorders	19±9	13±8
Providing clinical consultation for MCI	92%	NA
New MCI patients consulted in a typical month	17±13	NA

Staff: professionals which are actually hired and employed by the memory clinics involved in the survey. Collaborator: professionals employed elsewhere (e.g., other units or facilities) which support and collaborate with the memory clinic involved in the survey. Other: professional connected to the memory clinic not falling in the other categories (e.g., scientific director, head of clinical research, research Principal Investigator).