Table 1.

Demographic and Clinical Characteristics of Study Sample

	SCZ (n=72)	PMD (n=25)	CON (n=72)	χ2/F Statistic
Age (mean±SD)	39.1±12.1	41.4±9.7	39.9±13.3	0.35
Age of Onset-Psychosis (mean±SD)	23.8±9.6	24.7±7.4	na	0.19
Gender (% male)	40.3%	52.0%	45.8%	1.51
SES (mean±SD)	3.5±1.00	3.2±1.0	3.2±1.0	2.37
Race (% African-American)	56.0%	56.9%	41.7%	3.74
Substance Use Disorder (Abuse or Dependence)
Alcohol	18.1%	44.0%	na	6.71**
Cannabis	19.4%	36.0%	na	2.81
Cocaine	9.7%	24.0%	na	3.26+
Stimulants	2.8%	12.0%	na	3.23+
Hallucinogen	4.2%	8.0%	na	0.56
Sedatives	2.8%	4.0%	na	0.09
Opioids	1.4%	0.0%	na	0.35

⁺p<.07,

^**p<.01,

^***p<.001.