Table 1.

Expert characteristics (N=20).

Characteristic		Participants, N
Gender
	Female		13
	Male		7
Organization type
	Association		5
	Public institute for prevention/health promotion		5
	Public hospital		4
	National education		2
	Public research institute		2
	Public scientific/cultural/professional institution		1
	Government agency		1
Occupation
	Professor of health (public health, health promotion, gynecology)		3
	Nurses and midwives specializing in sexual health		3
	Clinical psychologists/youth psychotherapists		2
	Heads of prevention department/prevention project manager		2
	Sociologist experts on online youth sexuality		2
	College teacher (science and sexuality education)		1
	Regional health education program coordinator		1
	Prevention facilitator; specialized educator		1
	Advisor in social and family economy		1
	Social marketing expertise manager		1
	Documentation and information officer		1
	Epidemiologist		1
	Social worker		1
Specializations
	Youth health		18
	Sexual health		16
	Education/prevention/promotion		12
	Peer education		9
	Internet and social media		5
Region
	Paris region		16
	Rest of France		4