title: Service utilization during and after outpatient treatment for comorbid substance use disorder and depression.
abstract: Patients with comorbid substance use disorder (SUD) and depression incur greater treatment costs than those with either disorder alone. Integrated treatment targeting both issues concurrently has been shown to reduce substance use and depression in this population, but little is known about the effects of such treatment on the utilization of costly health services. This study compared 18-month patterns of service utilization for 236 veterans with comorbid SUD depression randomly assigned to 6 months of either Integrated Cognitive Behavioral Therapy (ICBT) or Twelve-Step Facilitation Therapy. Treatment group differences were found for the utilization of psychotropic medication services and inpatient hospitalization. Higher rates of therapy attendance, lower baseline depression, and receiving ICBT all predicted shorter admissions for those hospitalized during treatment. Ethnicity and gender predicted medication service use both during and following treatment. The findings provide evidence supporting the long-term cost-effectiveness of integrated treatment for this high-risk population.
authors.affiliation: San Diego State University/University of California, San Diego Joint Doctoral Program in Clinical Psychology, La Jolla, CA, USA. mworley@ucsd.edu
authors.forename: Matthew J
authors.initials: MJ
authors.lastname: Worley
authors.forename: Ryan S
authors.initials: RS
authors.lastname: Trim
authors.forename: Susan R
authors.initials: SR
authors.lastname: Tate
authors.forename: Jessica E
authors.initials: JE
authors.lastname: Hall
authors.forename: Sandra A
authors.initials: SA
authors.lastname: Brown
mesh_terms: D000328:Adult; D000368:Aged; D000553:Ambulatory Care; D015897:Comorbidity; D003362:Cost-Benefit Analysis; D019033:Delivery of Health Care, Integrated; D003863:Depression / Q000628:therapy*; D005260:Female; D006296:Health Services / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D008875:Middle Aged; D019966:Substance-Related Disorders / Q000523:psychology / Q000628:therapy*