Table 1.

Demographic, parent-infant dyad health and OUD treatment related variables for study sample of postpartum Medicaid members, by HOI tercile group representing neighborhood-level SDoH.^*

	Full sample	Lowest HOI tercile	Middle HOI tercile	Highest HOI tercile	Chi-square test
	n=1690	n=711	n=647	n=332
Individual-level demographic variables
Age
24 years or less	14.3	14.8	13.8	14.2	5.7
25–34 years	72.4	71.2	75.1	69.9	p=0.22
35 years or more	13.3	14.1	11.1	16.0
Race/ethnicity
Non-Hispanic White	89.0	84.3		92.8	53.0
Non-Hispanic Black	8.7	14.4	5.0	3.9	P<0.001
Other	2.3	1.4	2.8	3.3
Residence type
Urban	701	60.5	70.9	89.2	89.2
Rural	299	39.5	29.1	10.8	P<0.001
Parent-infant dyad and health-related variables
Comorbid mental health
disorder
Yes	62.9	63.6	60.6	66.0	3.0
No	37.1	36.4	39.4	34.0	p=0.23
Comorbid substance use
disorder
Yes	81.7	82.7	80.2	82.2	1.5
No	18.3	17.3	19.8	17.8	p=0.48
Three or more emergency
department visits (prior year)
Yes	29.9	30.0	29.7	30.4	0.1
No	70.1	70.0	70.3	69.6	p=0.97
Overdose event (prior year)
Yes	1.5	1.3	1.6	1.8	0.5
No	98.5	98.7	98.5	98.2	p=0.78
Delivery type
Cesarean	38.1	37.0		38.9	1.0
Vaginal	56.0	56.7	55.6	55.4	p=0.91
Undetermined	5.9	6.3	5.4	5.7
Preterm delivery
Yes	17.8	19.3	17.5	15.1	2.8
No	82.3	80.7	82.5	84.9
Infant diagnosis of neonatal					p=0.25
abstinence syndrome
Yes	68.9	68.5	68.2	71.1	1.0
No	31.1	31.5	31.8	28.9	p=0.62
OUD treatment delivery variables
Prenatal MOUD duration
None	2.9	2.5	3.3	3.0	4.9
1 month or less	9.8	9.7	11.0	7.8	p=0.77
1–4 months	26.7	27.7	25.0	27.7
5–8 months	32.0	32.8	31.4	31.6
9–12 months	28.6	27.3	29.4	29.8
OUD treatment
comprehensiveness index
0	13.6	11.8	15.5	13.6	9.1
1	9.0	8.6	10.4	7.2	p=0.33
2	13.8	13.2	14.4	13.9
3	17.5	18.0	16.1	19.0
4+	46.2	48.4	43.7	46.4

^*p values < 0.05 denote significance