Table A:

Core Functions and Forms of ED-Based Peer Support Programs for OUD

Core Function 1: Integration of Peers into the ED
Where are peers physically based?	Programs integrate peers into the ED. This integration may be facilitated by: physical integration- where peers office/desk space resides and administrative integration-what department/organization hires and supervises the peer.
▯ ED
▯ Target Hospital (Not ED)
▯ Community Agency
▯ No Office
▯ Telehealth
Where are peers administratively housed?
▯ Within another department of the hospital
▯ Within a community agency outside of the hospital
Core Function 2: Identifying and Linking PWOUDs with Peer Recovery Support
How is the peer notified when a potentially eligible patient is admitted to the ED?	Program identifies PWOUDs presenting to the ED, alerts the peer (if necessary), and makes the patient aware of peer support services.
▯ Through a referral
▯ Designated staff person notifies peer
▯ Any ED staff person notifies peer
▯ EHR alerts peer
▯ ED staff are alerted by EHR to refer peer
▯ Admissions are directly observed through EHR
Who makes the patient aware of the availability of peer services?
▯ Peer
▯ Other (e.g., ED staff member)
Core Function 3: Connecting PWOUDs to MAT and other Recovery Services
What approaches are taken to make the initial referral?	The program connects the PWOUD to OUD treatment of his choice and provides services aimed at reducing barriers to the PWOUD engaging in treatment.
▯ Scheduling an initial appointment with a MAT provider
▯ Peers have relationship with MAT provider
▯ Peers are employed by same program as MAT provider
▯ MAT provider has walk in hours
▯ ED-initiated buprenorphine
What strategies are used to ensure patient engagement in treatment after the initial referral?
▯ Short-term communication to identify and reduce barriers to MAT engagement
▯ Assertive outreach
▯ Meet with patients in the community
▯ Offer/support transportation to appointments