202550 Arrest trajectories of adults with a serious mental illness

Tuesday, November 10, 2009: 9:04 AM

Robert J. Constantine, PhD , Department of Mental Health Law and Policy, Florida Mental Health Institute, University of South Florida, Tampa, FL
John Petrila, JD , Mental Health Law and Policy, University of South Florida, Tampa, FL
Ross Andel, PhD , School of Aging Studies, University of South Florida, Tampa, FL
Objective: The objective was to identify subgroups of individuals with a serious mental illness (SMI) with different patterns of arrest, and to assess differences in the characteristics of individuals in these groups.

Method: We used multiple administrative data sets to identify adults with a SMI arrested in a large urban county in FY 03-04 and followed them for 1 year prior and 2 years following the 7/1/03-6/30/04 period. We used latent class growth analysis to identify subgroups with similar arrest patterns and multinomial logistic regression to assess differences in participant characteristics across the groups.

Results: We identified three subgroups: 1) one with little or no recidivism beyond the index year, 2) another with a consistent arrest pattern of about one-half arrest per year, and 3) a third group averaging just over four arrests per year. Compared with participants with low/no recidivism, those with some and high recidivism were more likely to be relatively young, male, homeless, and with fewer outpatient and more emergency room/inpatient mental health contacts. Participants with the highest recidivism were also more likely to have a psychotic disorder as opposed to bipolar I disorder and be substance abusers, whereas those with some recidivism were least likely to have undergone an involuntary psychiatric examination.

Conclusions: Identification of subpopulations with different risks of arrests over time provides useful information to policy makers regarding the differential targeting of resources designed to reduce the risk of arrest and increase treatment access.

Learning Objectives:
1. Describe the statistical methods used to identify the subpopulations of adults with a SMI and criminal justice involvement based on their patterns of arrest over a 4-year period 2. List the different arrest trajectories of the subgroups identified 3. Identify the demographic, clinical and service utilization characteristics that describe and differentiate the subgroups

Keywords: Criminal Justice, Mental Health Services

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: I have served as PI on several lartge scale projects related to adults with a serious mental illness who became involved in the criminal justice system
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.