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Intensive Case Management and Rehospitalization: A Survival Analysis

University of Tennessee

Myung-Shin Lee

Gyeong National University

This study evaluated the efficacy of an intensive-case management program in extending community tenure and reducing rates of rehospitalization for mentally ill outpatients. The study group was composed of 196 individuals with a history of state psychiatric hospitalization. One subgroup of subjects was composed of all clients currently receiving intensive case management (ICM) services (n = 108). A second subgroup, the control group, was made up of randomly selected clients (n = 88) eligible for intensive case management services. Survival analysis models were tested to derive a model that contained the maximum number of significant covariates predictive of community tenure (survival) until rehospitalization. After statistically controlling for these covanates, clients in the control group were 41.2% less likely to be rehospitalized (survival). Clients most at risk of rehospitalization were ICM clients who received shorter intervals of intensive case management; higher levels of services per month; and had experienced brief, frequent prior hospitalizations.

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