Table 1.

Mean SAPS Global Item Score for Each Subject was the Average of SAPS Global Item Scores for Hallucinations, Delusions, Bizarre Behavior, and Positive Formal Thought Disorder. Mean SANS Global Item Score for Each Subject was the Average of Affective Flattening or Blunting, Alogia, Avolition/Apathy, Anhedonia-Asociality, and Attention. Disorganization Symptoms Were the Sum of Global Scores for Bizarre Behavior, Positive Formal Thought Disorder, and Attention. Poverty Symptoms Were the Sum of Affective Flattening, Alogia, Avolition/Apathy, and Anhedonia-Asociality. Reality Distortion Symptoms Were the Sum of Hallucinations and Delusions

Clinical and Demographic Characteristics
Characteristic	Controls		Patients		Significance
	M	SD	M	SD	T Value/Chi-Square	P Value (2-tailed)
Age (in years)	37.18	7.59	36.39	9.54	0.31	.759
Gender (% male)	0.74		0.78		0.34	.737
Paternal education (in years)	12.70	1.46	13.26	2.61	0.90	.370
Maternal education	12.48	1.53	13.50	3.07	1.42	.162
Paternal SES	21.59	8.92	26.59	10.73	1.67	.100
Maternal SES	17.27	8.55	25.24	11.88	2.51	.015
Participant’s education (in years)	15.26	2.12	13.04	2.14	3.50	.001
Handedness (% right)	100.00		86.96		1.45	.152
IQ verbal	110.23	10.85	95.23	14.18	3.88	.000
IQ performance	115.45	11.64	101.82	15.24	3.30	.002
Medication (CPZ equivalents)			584.63	563.63
Mean SAPS global item score	0.02	0.11	1.91	1.21
Mean SANS global item score	0.37	0.62	2.50	0.78
Disorganization	0.78	1.17	5.48	2.71
Poverty	1.13	2.39	10.43	3.53
Reality Disotortion	0.00	0.00	4.26	3.53

Note: SAPS, scale for assessment of positive symptoms; SANS, scale for the assessment of negative symptoms; CPZ, chlorpromazine; SES, socioeconomic status.