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Area of Science:

  • Public Health
  • Emergency Medicine
  • Addiction Medicine

Background:

  • Emergency departments (EDs) encounter many individuals with opioid use disorder (OUD).
  • Most health systems lack adequate resources for ED-based OUD care.
  • The CA Bridge program promotes low-threshold, ED-initiated OUD treatment.

Purpose of the Study:

  • To assess the implementation and impact of the CA Bridge program in California EDs.
  • To evaluate statewide buprenorphine prescribing trends in EDs.
  • To analyze patient navigator encounters and buprenorphine treatment rates.

Main Methods:

  • Analysis of CA Bridge grant reporting data (July 2022-December 2023).
  • Examination of California controlled substances prescribing data for 2022.
  • Comparison of treatment rates between public and private hospitals.

Main Results:

  • Over 165,000 patient navigator encounters and 44,000 buprenorphine treatments occurred at CA Bridge hospitals.
  • Public hospitals demonstrated over 50% higher rates for patient navigation and buprenorphine treatment.
  • In 2022, 1,737 California emergency clinicians prescribed buprenorphine 6,382 times, with 36% receiving a subsequent prescription within 40 days.

Conclusions:

  • EDs are vital settings for reaching individuals with OUD.
  • The CA Bridge program facilitates high buprenorphine uptake in emergency settings.
  • Implementation of ED-based OUD treatment models shows promising results.