Volume 53 | Number S3 | December 2018

Abstract List

Megan E. Vanneman Ph.D., M.P.H., Ciaran S. Phibbs Ph.D., Sharon K. Dally M.S., Amal N. Trivedi M.D., M.P.H., Jean Yoon Ph.D.


To examine Veterans Health Administration () enrollees' use of services for treatment of behavioral health conditions (s) after gaining Medicaid, and if reliance varies by complexity of s.

Data Sources/Study Setting

and Medicaid Analytic tract utilization data from 31 states, 2006‐2010.

Study Design

A retrospective, longitudinal study of Veterans enrolled in care in the year before and year after enrollment in Medicaid among 7,249 nonelderly Veterans with serious mental illness (), substance use disorder (), posttraumatic stress disorder (), depression, or other s.

Data Collection/Extraction Methods

Utilization and reliance (proportion of care received at ) for outpatient and inpatient services in unadjusted and adjusted analyses.

Principal Findings

In adjusted analyses, we found that overall Veterans did not significantly change their use of outpatient services after Medicaid enrollment. In beta‐binomial models predicting outpatient reliance, veterans with ( = 1.38,  < .05), ( = 1.62,  < .01), and depression ( = 1.36,  < .05) had higher reliance than veterans with other s after Medicaid enrollment.


While veterans did not change the amount of outpatient services they used after enrolling in Medicaid, the proportion of care they received through or Medicaid varied by .