Table 1.

Participant flow, time points, questionnaires, and respondents

	Study group Tornadon= 90			Control group care as usualn= 90
Timepoints	Child (if ≥ 10 years)	Parents/caregivers	Professional (psychiatrist (T2) and general practitioner (T4 and T7))	Child (if ≥ 10 years)	Parents/caregivers	Professional (psychiatrist or pediatrician)
T1 = referral	HoNOSCA	ADHD-RS		HoNOSCA	ADHD-RS
	Kidscreen	HoNOSCA		Kidscreen	HoNOSCA
	EQ-5D	Kidscreen		EQ-5D	Kidscreen
		EQ-5D			EQ-5D
		Extra questionsa			Extra questionsa
T2 = intake and start diagnostic process	HoNOSCA	ADHD-RS	ADHD-RS	HoNOSCA	ADHD-RS	ADHD-RS
	Kidscreen	HoNOSCA	CGI	Kidscreen	HoNOSCA	HoNOSCA
		Kidscreen	HoNOSCA		Kidscreen	CGI
		EQ-5D			EQ-5D
T3 = consultation and end of diagnostic process	GGZ-thermometer	GGZ-thermometer		GGZ-thermometer	GGZ-thermometer
T4 = start pharmacotherapy	HoNOSCA	ADHD-RS	ADHD-RS	HoNOSCA	ADHD-RS	ADHD-RS
	Kidscreen	HoNOSCA	CGI	Kidscreen	HoNOSCA	HoNOSCA
		Kidscreen			Kidscreen	CGI
		Tic-P			Tic-P
		EQ-5D			EQ-5D
T5 = 6 weeks after start pharmacotherapy	HoNOSCA	ADHD-RS		HoNOSCA	ADHD-RS
	Kidscreen	HoNOSCA		Kidscreen	HoNOSCA
	Morisky	Kidscreen		Morisky	Kidscreen
		Morisky			Morisky
		EQ-5D			EQ-5D
T6 = 9 months after T1	Morisky	Morisky		Morisky	Morisky
	HoNOSCA	HoNOSCA		HoNOSCA	HoNOSCA
	Kidscreen	Kidscreen		Kidscreen	Kidscreen
	EQ-5D	EQ-5D		EQ-5D	EQ-5D
T7 = 1 year after T0	HoNOSCA	ADHD-RS	ADHD-RS	HoNOSCA	ADHD-RS	ADHD-RS
	Kidscreen	HoNOSCA	HoNOSCA	Kidscreen	HoNOSCA	HoNOSCA
	EQ-5D	Kidscreen	CGI	EQ-5D	Kidscreen	CGI
	Morisky	Tic-P		Morisky	Tic-P
	GGZ-thermometer	EQ-5D		GGZ-thermometer	EQ-5D
		Morisky			Morisky
		GGZ-Thermometer			GGZ-thermometer

^aSex, family constitution, education level parents.