title: Medicaid beneficiaries using mental health or substance abuse services in fee-for-service plans in 13 states, 2003.
abstract: OBJECTIVE
  This study identified Medicaid beneficiaries using mental health or substance abuse services in fee-for-service plans in 13 states in 2003 (N=1,380,190) and examined their use of medical services.
  
  
  METHODS
  Administrative and fee-for-service claims data from Medicaid Analytic eXtract files were analyzed to identify mutually exclusive groups of beneficiaries who used either mental health or substance abuse services and to describe patterns of medical service use.
  
  
  RESULTS
  Overall, 11.7% of Medicaid beneficiaries were identified as using mental health or substance abuse services (10.9% and .7% used each of these services, respectively), with substantial variation across age and eligibility groups. Among beneficiaries using mental health services, 47.4% had visited an emergency room for any reason, 7.8% were treated for their disorder in inpatient settings, 13.8% received inpatient treatment for problems other than their mental or substance use disorders, and 70.4% received prescriptions for psychotropic medications. Among beneficiaries using substance abuse services, 60.7% had visited an emergency room, 12.6% were treated for their disorder in inpatient settings, 24.7% received other inpatient treatment, and 46.1% received prescriptions for psychotropic medications. Among beneficiaries not using either mental health or substance use services, 29.0% had visited an emergency room, 12.7% received inpatient treatment, and 10.1% received prescriptions for psychotropic medications.
  
  
  CONCLUSIONS
  Beneficiaries who used mental health or substance abuse services entered general inpatient settings and visited emergency rooms more frequently than other beneficiaries.
authors.affiliation: Mathematica Policy Research, Suite 550, Washington, DC 20024, USA. hireys@mathematica-mpr.com
authors.forename: Henry T
authors.initials: HT
authors.lastname: Ireys
authors.forename: Allison L
authors.initials: AL
authors.lastname: Barrett
authors.forename: Jeffrey A
authors.initials: JA
authors.lastname: Buck
authors.forename: Thomas W
authors.initials: TW
authors.lastname: Croghan
authors.forename: Melanie
authors.initials: M
authors.lastname: Au
authors.forename: Judith L
authors.initials: JL
authors.lastname: Teich
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D016208:Databases, Factual; D018588:Fee-for-Service Plans; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008484:Medicaid / Q000706:statistics & numerical data*; D001523:Mental Disorders / Q000188:drug therapy; D008605:Mental Health Services / Q000706:statistics & numerical data*; D008875:Middle Aged; D011619:Psychotropic Drugs / Q000627:therapeutic use; D016320:Substance Abuse Treatment Centers / Q000706:statistics & numerical data*; D014481:United States; D055815:Young Adult
chemical_list: D011619:Psychotropic Drugs