Response to a peer telehealth intervention for emergency department patients presenting with opioid use disorder or unintentional overdose: a stratified interrupted time series analysis

Table 1 PRSS telehealth program implementation dates by site

	Rurality	Total annual ED visits, 2019*	PRSS program go live date	Date ranges included for analysis**	Total ED encounters with OUD and/or unintentional opioid overdose	Pre-implem. encounters	Post-implem. encounters
Site 1	Rural	8,842	9/24/2018	3/24/2016-3/24/2021	114	39	75
Site 2	Rural	10,274	10/29/2018	4/29/2016-4/29/2021	61	35	26
Site 3	Rural	15,800	12/17/2018	6/17/2016-6/17/2021	193	86	107
Site 4^§	Suburban	N/A	12/24/2018	6/24/2016-6/24/2021	68	38	30
Site 5	Rural	N/A	2/25/2019	8/25/2016-8/25/2021	261	115	146
Site 6^§	Suburban	42,150	3/11/2019	9/11/2016-9/11/2021	524	291	233
Site 7	Urban	44,441	3/18/2019	9/18/2016-9/18/2021	453	267	186
Site 8	Rural	8,258	4/1/2019	10/1/2016-10/1/2021	70	40	30
Site 9	Rural	6,201	4/29/2019	10/29/2016-10/29/2021	29	16	13
Site 10	Urban	52,378	5/13/2019	11/13/2016-11/13/2021	773	413	360
Site 11	Rural	12,866	5/27/2019	11/27/2016-11/27/2021	90	63	27
Site 12^§	Suburban	20,304	6/10/2019	12/10/2016-12/10/2021	73	47	26

Note: One rural site listed includes two separate hospitals’ EDs that were combined for analysis due to small size, proximity in neighboring counties, and program implementation on the same date
*N/A indicates not available. ED visit information obtained from 2019 Hospital Service Reports, Indiana Department of Health
**Date ranges represent 10 quarters (30 months) before and after go live (program implementation) date
^§Indicates teaching hospital

ISSN: 1747-597X