Community health worker intervention improves early childhood vaccination rates: results from a propensity-score matching evaluation

Table 2 Comparison of completion rates of recommended early childhood immunization series, 2006–2016

	Sample Size (Unweighted)		On-Schedule Completion, All Series				Completion by Age 5, All Series
HSP Population	HSP	Matches	HSP %	Matches %	ATT	p-value¹	HSP %	Matches %	ATT	p-value¹
Statewide	7,218	54,175	25.3	23.0	2.3***	< 0.001	63.8	58.6	5.2***	< 0.001
Rural border counties	2,393	7,093	29.4	25.3	4.1***	< 0.001	71.2	65.1	6.1***	< 0.001
Hispanic/Latinx	4,263	32,719	27.1	23.1	4.0***	< 0.001	67.8	62.3	5.5***	< 0.001
American Indian	852	2,152	24.4	25.6	-1.2	0.574	67.5	62.5	5.0*	0.031
Less than high school	2,364	18,464	21.6	19.6	2.0**	0.094	61.7	56.6	5.1***	< 0.001
Teen (age < 20)	1,264	6,704	23.8	21.7	2.1	0.200	65.5	59.8	5.7**	0.003
Firstborn	3,004	18,266	29.3	27.7	1.6	0.169	67.9	62.8	5.1***	< 0.001

HSP: Health Start Program intervention group; Matches: propensity score matched control group.
¹ATT p-value based on estimated propensity score.
*** p < 0.001, ** p < 0.01, * p < 0.05

ISSN: 1471-2458