Table 1.

Characteristics of patients with opioid use disorder by treatment initiation^*.

	Initiated treatment		Did not initiate treatment
	(n = 1,331)		(n = 8,510)
Characteristic	n	%	n	%	P value
Sex					<.001
Female	562	42.2	4,662	54.8
Male	769	57.8	3,848	45.2
Age					<.001
18–29	438	33.3	2,527	29.7
30–49	443	23.7	2,930	34.4
50–64	316	32.9	1,189	14.0
65+	134	10.1	1,864	21.9
Race/ethnicity					0.031
American Indian/Alaska Native	14	1.1	136	1.6
Asian	35	2.6	142	1.7
Native Hawaiian/other Pacific Islander	6	0.5	33	0.4
Black/African American	81	6.1	678	8.0
Hispanic	202	15.2	1,257	14.8
White	919	69.1	5,809	68.3
Other/unknown	74	5.6	455	5.4
Psychiatric conditions in prior year	706	56.0	4,797	56.4	.023
Medical conditions in prior year	769	57.8	5,883	69.1	<.001
Index encounter type, %					<.001
Inpatient	n/a	n/a	n/a	n/a
Emergency department	206	15.5	1,102	13.0
Primary care	438	32.9	4,716	55.4
Psychiatry/AOD treatment	556	41.8	1,499	17.6
Other outpatient	131	9.8	1,193	14.0

^*Initiation was estimated among patients with an OUD index diagnosis during an encounter in an outpatient or ED setting (i.e., not inpatient) (n = 9,841).