Findings
SECONDARY
In this secondary analysis of a multicenter, cluster-randomized trial of 5 health care systems and 1026 clinicians, including attending physicians, residents, and advanced practice practitioners, the number of interactions with another clinician initiating buprenorphine in the emergency department had a dose-dependent association with self-adoption of the practice. The primary trial intervention, health care system, and clinician type were also associated with practice adoption.