Table 3.

Baseline Demographic and Diagnostic Characteristics of N=251 Participants by Latent Class

	Persisting Low	Quickly Remitting	Gradually Remitting	Persisting High	PL vs.	PL vs.	PL vs.	QR vs.	QR vs.	GR vs.
	Mean (SD)	Mean (SD)	Mean (SD)	Mean (SD)	QR p	GR p	PH p	GR p	PH p	PH p
Baseline age	11.1 (2.8)	11.5 (2.7)	10.4 (2.2)	9.2 (1.9)	0.3952	0.0714	<0.0001	0.0263	<0.0001	0.0109
SESa	4.1 (0.8)	4.2 (0.7)	4.2 (0.8)	3.9 (1.0)	0.2979	0.4569	0.2361	0.7140	0.0576	0.0840
Baseline CGAS	82.4 (9.9)	47.2 (10.3)	50.5 (8.8)	49.5 (7.9)	<0.0001	<0.0001	<0.0001	0.0855	0.2234	0.5888
Baseline mania	0.3 (1.1)	4.5 (1.9)	4.3 (2.0)	4.7 (2.1)	<0.0001	<0.0001	<0.0001	0.6001	0.5971	0.2410
Baseline ADHD severity	0.5 (1.3)	15.5 (2.2)	16.8 (1.4)	17.1 (1.3)	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	0.2745
	N (%)	N (%)	N (%)	N (%)	p	p	p	p	p	p
Male gender	56 (58.3)	20 (51.3)	45 (75.0)	47 (83.9)	0.4547	0.0358	0.0017	0.0167	0.0010	0.2387
Race					0.8981	0.0223	0.8045	0.0778	0.9329	0.0365
White	88 (91.7)	36 (92.3)	47 (78.3)	52 (92.9)
Black	5 (5.2)	2 (5.1)	8 (13.3)	2 (3.6)
Other	3 (3.1)	1 (2.6)	5 (8.3)	2 (3.6)
Baseline diagnostic group					b	--	--	--	--	--
ADHD	0 (0.0)	12 (30.8)	33 (55.0)	30 (53.6)
Bipolar	4 (4.2)	27 (69.2)	27 (45.0)	26 (46.4)
Healthy	92 (95.8)	0 (0.0)	0 (0.0)	0 (0.0)
Stimulant usec	9 (9.4)	29 (74.4)	53 (88.3)	56 (92.9)	<0.0001	<0.0001	<0.0001	0.0779	0.0182	0.4104

^aOn a 1–5 scale, with 5 being the highest SES

^bComparisons could not be made for baseline diagnostic group because of 0-count cells

^cUse of stimulants or other medication for ADHD during the study;

PL=Persisting Low, QR=Quickly Remitting, GR=Gradually Remitting, PH=Persisting High