Retention on buprenorphine treatment reduces emergency department utilization, but not hospitalization, among treatment-seeking patients with opioid dependence Journal of Substance Abuse Treatment, 05/04/2012

Schwarz R et al. – Emergency department utilization was 0.93 events per person year and was significantly reduced by buprenorphine maintenance treatment (BMT), with increasing time on BMT. BMT had no significant effect on hospitalizations or average length of stay.

• Drug users are marginalized from typical primary care, often resulting in emergency department (ED) usage and hospitalization due to late-stage disease.
• Though data suggest methadone decreases such fragmented healthcare utilization (HCU), the impact of buprenorphine maintenance treatment (BMT) on HCU is unknown.
• Chart review was conducted on opioid dependent patients seeking BMT, comparing individuals (n=59) who left BMT ≤7days with those retained on BMT (n=150), for ED use and hospitalization.
• Using negative binomial regressions, including comparison of time before BMT induction, ED utilization and hospitalization were assessed.