Table 1.

Characteristics of the Delphi experts contacted for the first round (left) and those who completed the whole process (right)

	All experts (n=35)	Experts who completed the Delphi process (n=18)
Domain of expertise
Psychiatry	19 (54%)	7 (39%)
Internal medicine	5 (14%)	3 (17%)
Pharmacology	4 (11%)	4 (22%)
Neurology	4 (11%)	2 (11%)
Geriatric medicine	3 (9%)	2 (11%)
Country of activity
Switzerland	20 (57%)	11 (61%)
France	9 (26%)	6 (33%)
Belgium	2 (6%)	1 (6%)
Canada	3 (9%)	0 (0%)
Spain	1 (3%)	0 (0%)