Day treatment, a form of partial hospitalization, may have unique advantage
s in the care of patients with personality disorders. It appears to offer a
favorable level of intensiveness and containment, thus facilitating treatm
ent of the chronic emotional and behavioral difficulties experienced by the
se individuals. Although several authors have written about the appropriate
ness of day treatment for personality disorder patients, empirical support
has been slow to accumulate. More recently, greater research attention has
been focused on this question. This review examines the current research. T
he findings suggest that day treatment is effective for this difficult pati
ent population and that it is more effective than standard treatment (i.e.,
medication and support). Preliminary evidence indicates that day treatment
may lead to a reduction in future health-services costs. Some findings als
o show that day treatment may be particularly beneficial for certain patien
ts-for example, those who are more psychologically minded. Implications of
these findings for clinical practice are considered. Limitations in our cur
rent approach to research in this area are highlighted, and recommendations
for future study are provided.