Table 1.

Site Sample Characteristics For Each Diagnostic Group.

	Discovery Sample		Replication Sample
	Healthy Individuals N = 52	Patients with Bipolar Disorder N = 44	Healthy Individuals N = 41	Patients with Bipolar Disorder N = 78
Male Sex (n,%)	28 (53.8)	29 (65.9)	13 (31.7)	26 (33.3)
Age (mean, years)	29.8 (8.3)	27.6 (8.3)	33.2 (11.8)	34.2 (12.6)
IQ (mean)	115.2 (16.6)	103.0 (17.9)	104.1 (19.7)	106.0 (17.1)
BPRS Total Score (mean)	24.2 (0.4)	46.3 (19.8)	25.5 (3.9)	32.6 (8.7)
Psychotic Symptoms (n,%)	–	44 (100)	–	21 (26.9)
Unmedicated (n,%)	–	4 (9.3)	–	15 (19.2)
Lithium (n,%)	–	18 (41.9)	–	11 (14.1)
Antipsychotics (n,%)	–	34 (79.1)	–	24 (30.8)
Daily Antipsychotic Dose (CPZE)	–	275.9 (339.3)	–	92.2 (224.5)

Continuous variables are shown as mean (standard deviation); BPRS: Brief Psychiatric Rating Scale; CPZE: Chlorpromazine equivalents.