This study compared intensive case management (ICM) with standard clinical
case management in a well-resourced community mental health service in Aust
ralia. A total of 73 severely disabled clients of an existing clinical serv
ice were randomly allocated to either ICM (caseload 10 clients per clinicia
n) or standard case management (caseload up to 30 clients per clinician) an
d followed up for 12 months. A greater proportion of clients receiving ICM
showed improved social functioning, these clients had fewer psychiatric hos
pital admissions involving police, and were more likely to engage and remai
n in treatment compared to those who received standard case management. Cli
ents receiving ICM did not show a reduction in hospitalization duration or
total number of episodes. It is suggested that future studies of ICM should
focus on which aspects of treatment produce positive outcomes, how they ca
n be applied to routine clinical settings, and over what period of time out
comes are sustained.