. Author manuscript; available in PMC: 2013 Nov 3.

Published in final edited form as: Schizophr Res. 2008 Jun 20;103(0):10.1016/j.schres.2008.04.038. doi: 10.1016/j.schres.2008.04.038

Table 1.

Characteristics of Participants.

Variable	Schizophrenia Patients	Relatives of Schizophrenia Patients	Controls	Bipolar Patients	Relatives of Bipolar Patients

	n=19 Mean (SD)	n=37 Mean (SD)	n=36 Mean (SD)	n=18 Mean (SD)	n=25 Mean (SD)
Age (Years)	41.3 (10.3)	49.8 (10.3)	47.5 (15.1)	44.8 (9.8)	45.7 (17)
% Female	21^a,^b	68	42	22^c,^d	36
Education	13.1 (3.1)^a,^b	14.9 (2.5)	15.3 (2.8)	16 (2.6)	14.3 (3.5)
Estimated IQ	96.6 (12.6)^a,^b	108.7 (10.3)	111.9 (10.8)	112.8 (14.4)	111.1 (13.4)
BPRS Total	46.9 (9.2)	NA	NA	36 (8.9)	NA
SPQ Total	NA	14.7 (10.8)	10.0 (6.7)	NA	14.9 (13.8)

Note. SD=Standard Deviation. IQ=Intelligence Quotient. Estimated IQ was derived from a formula using Vocabulary and Block Design subtests (Brooker & Cyr, 1986). BPRS=Brief Psychiatric Rating Scale (Ventura et al. 1993). NA=not applicable. SPQ=Schizotypal Personality Questionnaire (Raine, 1991).

Schizophrenia Patients different from Control Group mean, p < .05.

Schizophrenia Patients different from Relatives of Schizophrenia Group mean, p < .05.

Bipolar Patients different from Control Group mean, p < .05.

Bipolar Patients different from Relatives of Bipolar Group mean, p < .05.