Risk for emerging bipolar disorder, variants, and symptoms in children with attention deficit hyperactivity disorder, now grown up

Table 3 Diagnostic interview schedule for children bipolar mania total symptoms count in attention deficit hyperactivity disorder and local normative comparison group

Assessment point	ADHD		LNCG		DF	F ratio	P values
	n	Mean ± SD	n	Mean ± SD
6 yr	441	3.38 ± 2.54	246	1.85 ± 1.93	1687	68.58	< 0.0001
8 yr	360	2.89 ± 2.3	219	1.45 ± 1.69	1578	63.70	< 0.0001
12 yr	378	3.05 ± 2.85	236	1.77 ± 2.07	1613	35.80	< 0.0001
14 yr	420	2.64 ± 2.59	242	1.72 ± 2.00	1661	22.51	< 0.0001
TSC Over Time	579	3.0 ± 0			32538	63.9	< 0.0001

ADHD: Attention deficit hyperactivity disorder; LNCG: Local normative comparison group; TSC: Total symptoms count.