The long-term effect of outpatient commitment on service use was evaluated
in 81 patients with serious and persistent mental illness. An increased num
ber of outpatient visits and a decreased number of hospital admissions, tot
al hospital days, and lengths of stay were observed during commitment perio
ds of greater than 1 year relative to levels of use in the same patients ov
er the 12-month period preceding commitment. This study provides support th
at outpatient commitment improves compliance with outpatient treatment and
reduces hospital use in patients who are on outpatient commitment to a sing
le treatment agency for periods up to 5 years.