Table 1.

Overview of professions from attendees of the Mental Health and Opioid Use Disorder Learning Collaborative series.

Wave	Profession sectors
Wave 1 (n = 423)	• Patient care (n = 104) • Community services (n = 99) • Recovery/prevention services (n = 36) • Healthcare management/administration (n = 50) • Research/academic roles (n = 35) • Law enforcement/security (n = 14) • Other (n = 30) • Not reported (n = 55)
Wave 2 (n = 370)	• Patient care (n = 66) • Community services (n = 143) • Recovery/prevention services (n = 33) • Healthcare management/administration (n = 47) • Research/academic roles (n = 28) • Law enforcement/security (n = 11) • Other (n = 23) • Not reported (n = 19)
Community X (n = 237)	• Patient care (n = 89) • Community services (n = 36) • Recovery/prevention services (n = 17) • Healthcare management/administration (n = 16) • Research/academic roles (n = 18) • Law enforcement/security (n = 3) • Other (n = 12) • Not reported (n = 46)

^aParticipants who attended sessions multiple times were counted each time they attended, given certain aspects of participant registration precluded the feasibility of only including each participant once (e.g., attendees did not include their name or full name). In addition, HCS staff, non-HCS staff, host(s), presenter(s), and facilitator(s) are all included.

^bProfession sectors include the following roles: Patient Care (nurses, clinicians, psychiatrists, social workers); Community Services (community outreach/coordinators); Recovery/Prevention Services (harm reduction specialists, peer recovery coaches); Healthcare Management/Administration (medical directors, CMOs, administrative coordinators); Research/Academic Roles (associate professors, research assistants, division chiefs, interns); and Law Enforcement/Security (security personnel, monitors, probation officers).