TABLE 1.

Characteristics of a sample of adults with mental illnesses and of a subsample with six-month follow-up data

Characteristic	Full sample (N=4,484)		Follow-up (N=2,579)		pa
	N	%	N	%
Sex					.499
Male	2,681	60	1,554	60
Female	1,800	40	1,025	40
Race-ethnicity					<.001
White	2,300	51	1,353	53
Black	1,687	38	1,036	40
Hispanic	317	7	136	5
Other	172	4	54	2
Primary diagnosis					<.001
Schizophrenia	2,837	64	1,687	65
Bipolar disorder	424	10	218	9
Major depression	824	18	442	17
Substance use disorder	277	6	205	8
Other	106	2	20	1
Recent hospitalization (past 6 months)					<.001
No	2,704	60	1,274	49
Yes	1,776	40	1,304	51
Alcohol use					<.001
Abstinence	2,474	55	1,311	51
Nonproblematic use	858	19	546	21
Problematic use	1,141	26	716	28
Drug use					<.001
Abstinence	3,022	68	1,665	65
Nonproblematic use	476	11	310	12
Problematic use	969	22	594	23
Perpetrated any recent violence (past 6 months)					.594
No	3,443	77	1,977	77
Yes	1,023	23	597	23
Experienced any recent victimization (past 6 months)					.303
No	3,082	69	1,760	68
Yes	1,382	31	812	32
Age (M±SD)	39.08±11.34		37.71±11.24		<.001
Psychiatric symptoms (M±SD score)b
Affect	.26±.89		.31±.90		.225
Positive symptoms	.09±.93		.18±.94		.116
Negative symptoms	−.07±.92		.02±.95		<.001
Disorganized cognitive processing	−.02±.88		.07±.91		<.001
Violence factor score (violence in past 6 months) (M±SD)c	−.28±.71		−.29±.70		.493
Victimization factor score (victimization in past 6 months) (M±SD)d	−.19±.82		−.18±.82		.356

^aMeans were compared by t tests, and proportions were compared by chi square tests.

^bScores ranged from −1.50 to 3.20 for affect, −1.35 to 3.33 for positive symptoms, −1.72 to 3.36 for negative symptoms, and −1.63 to 3.67 for disorganized cognitive processing, with higher scores indicating greater symptomatology.

^cScores ranged from −.64 to 2.96, with higher scores indicating greater prevalence or severity of violence.

^dScores ranged from −.70 to 2.62, with higher scores indicating greater prevalence or severity of violent victimization.