Table A1.

Additional Measures for Court-level variables.

Variable Name	Coding Scheme
Court type
Other (i.e., non-substance use) court	Coded as 0 = No if court was a Veteran’s Treatment,
	Reentry, Family Dependency, and Mental Health only
Substance use Court	Coded as 0 = Yes if court was a Drug, DUI/DWI, and Mental
	Health Court in Combination with Drug Court
Staff characteristics
Participant to staff ratio	Total number of participants per court/Total number of staff per court
Participants to judge ratio	Total number of participants per court/Judges per court
Number of courts overseen at one time	0 = No response; 1 = one type of court; 2 = two types of court; 3 = three types of court; 4 = four or more types of court
Coordinators’ work	1 = 3 years or less; 2 = 4 or more years
Experience
Factors that affect Court Participation
Exclusionary	0 = None selected; 1 = Uses pain meds; 2 = Prior violent felony conviction; 3 Other only; 4 = Other + prior violent felony conviction; 5 = Other combinations
Eligibility criteria
Number of exclusionary eligibility	0 = No response; 1 = one eligibility criteria selected; 2 = two eligibility criteria selected; 3 = three eligibility criteria selected; 4 = four eligibility criteria selected; 5 = five eligibility criteria selected; 6 = six eligibility criteria selected; 7 = seven eligibility criteria selected
Number (count) and type of treatment options allowed for substance use	Coded for distinct types of treatment offerings and various combinations of them based on the following options: MAT, 12-step, individual counseling, group therapy, cognitive behavioral therapy (CBT), motivational interviewing (MI), mindfulness stress reduction (MSR), and mindfulness relapse prevention (MRP) (range: 0 (None selected) to 10 (other combinations of available options)
Number (count) and type of treatment options allowed for mental health	Coded for distinct types of treatment offerings and various combinations of them based on the following options: Group therapy, individual counseling, motivational interviewing (MI), cognitive behavioral therapy (CBT), dialectic behavioral therapy (DBT), mindfulness stress reduction (MSR) (range: 0 (None selected) to 10 (Other combinations of available options)
Available form/s of MAT service	Coded for distinct types of MAT offerings and various combinations of them based on the following options: Naltrexone/Vivitrol, buprenorphine/Naloxone, buprenorphine pills, acamprosate, methadone, disulfiram/Antabuse, buprenorphine injection, and buprenorphine implant (range: 0 (None selected to 12 (Other combinations of available options)