Table 1.

Participant Characteristics by Population and Randomized Intervention

	Total N = 119		Acute Pain n = 29		Chronic Pain n = 49		No Pain, Illicit Use n = 41
	Presentation (N=61)	Presentation + Mastery (N=58)	Presentation (N=16)	Presentation + Mastery (N=13)	Presentation (N=28)	Presentation + Mastery (N=21)	Presentation (N=17)	Presentation + Mastery (N=24)
% Male	57	56	67	39	47	41	69*	77*
Age (M ± SD)	34.7 ± 11.4	35.0 ± 10.8	35.8 ± 15.5	36.7 ± 15.7	36.0 ± 9.0	38.1 ± 10.7	30.9 ± 8.2	31.6 ± 8.7
Education (% Highest Degree Earned)
High School	34	44	38	31	26	50	47	46
2-year degree	22	15	19	31	32	17	19	4
4-year college degree	30	31	38	23	26	17	30	46
Master’s degree/Terminal degree/	14	11	6	15	16	17	17	4
% Employed full time	75	64	80	62	69	71	81	59
% Uninsured	16	10	13	0	13	6	27	18
% Used Drug Last 30 Days
Alcohol	60	65	54	74	41	47	88*	87*
Benzodiazepines	29	19	13	7	9	12	44*	55*
Cannabis	56	58	46	67	30	41	75*	86*
MDMA	12	8	8	7	0	0	23*	25*
Prescription Stimulants	21	11	0	0	12	6	41*	31*
BPI Pain Severity Score (1–10) (M ± SD)	3.1 ± 3.2	3.5 ± 3.0	1.7 ± 2.4	1.3 ± 2.0	4.2 ± 2.4#	3.8 ± 2.9#	2.5 ± 2.2	1.8 ± 2.2
BPI Pain Interference Score (1–10) (M ± SD)	2.8 ± 2.8	2.8 ± 2.5	2.0 ± 2.8	1.4 ± 1.9	3.6 ± 2.6#	4.2 ± 2.6#	2.6 ± 2.2	1.8 ± 2.8
% Heard of naloxone (Narcan)	86	90	77	80	90	94	81	96
% Ever OD	16	14	13	15	9	12	18*	14*
% Ever Witnessed OD	51	40	33	40	50	35	69*	46*
Minutes to complete intervention (M+SD) †	27.4 ± 15.8	36.4 ± 22.3	19.4 ± 8.0	38.2 ± 20.6	32.1 ± 18.1	34.9 ± 15.4	26.3 ± 14.3	36.4 ± 27.7

Note:

^(*)Asterisks indicate that the no pain group significantly differed from acute and chronic pain groups.

^(#)Hashtags indicate that chronic pain groups significantly differed from acute pain and no pain groups. BPI=Brief Pain Inventory, M= mean, SD= standard deviation, OD=overdose,

^†indicates a significant difference between Presentation and Presentation + Mastery interventions