Table 1.

Demographics of Sample Population (N=226)

	BPD−P (N=151)	BPD+P (N=75)	p-value
	Mean (SD)	Mean (SD)
Age	12.81 (3.35)	13.80 (3.53)	0.04
SES*	1.94 (0.97)	2.00 (0.97)	0.65
BPD Onset	7.04 (3.92)	6.54 (4.01)	0.37
# BPD Symptoms **	5.77 (1.33)	6.19(1.13)	0.02
# BPD Episodes ***	19.92(34.48)	63.39(126.33)	0.00
BPD Treatment Onset	8.18(3.43)	7.89(3.74)	0.5
Psychiatric Medication**	1.01(1.60)	1.47(1.94)	0.06
Psychiatric Hospitalizations **	0.93(1.76)	2.11(2.38)	0.00
	N (%)	N (%)
Gender (% Male)	110 (73)	59 (79)	0.34
Race (% White)	143(95)	69 (95)	0.92

^*The Hollingshead Four-Factor Index was used to assess socioeconomic status (SES) on a scale of 1 through 5; 1 representing most affluent social class, 5 least affluent.⁴⁶

^**Total number per subject throughout his or her lifetime

^***The number of episodes represents distinct and separate BPD episodes that met either full or subthreshold DSM-IV criteria for Mania.

BPD = Bipolar Disorder

BPD+P = Bipolar Disorder with Psychosis

BPD−P = Bipolar Disorder without Psychosis