TABLE 2.

Clinical characteristics of study participants (N = 90)

	N		%	Range	Percentile and interpretation
Diagnosis
Schizophrenia	45		50
Schizoaffective Disorder	45		50
Alcohol Abuse	4		4
Alcohol Dependence	86		96
	Mean		SD
PANSSa
Positive	15.4		5.2	7.0–31.0	21, Low
Negative	13.5		4.9	7.0–30.0	12, Low
General	32.3		7.1	20.0–49.0	24, Low
Composite	1.9		7.4	–16.0–+20.0	66, Average
CDSSb	5.2		4.0	.0–15.0	74% specificity, 100% sensitivity for depression
ASIc	Mean	Median	SD	Range
Alcohol Composite	.53	.54	.21	.12–.92
TLFBd
Number of drinking days	3.0	3.0	2.4	0–7
Drinks per week	36.5	21.4	46.3	0–268.8
Number of heavy drinking days	2.2	1.0	2.3	0–7

^aPositive and Negative Syndrome Scale. Possible range of scores:

Positive 7–49; Negative 7–49, General 16–112; Composite –42–+42.

PANSS “Low” and “Average” refer to inpatient sample of individuals with schizophrenia on which PANSS was normed.

^bCalgary Depression Scale for Schizophrenia. Possible range of scores: 0–27.

^cASI = Alcohol Severity Index, last 30 days. Possible range of scores 0–1, Higher number indicates higher severity for Alcohol Composite.

^dTLFB = Timeline Followback, baseline week.