Does introducing an immunization package of services for migrant children improve the coverage, service quality and understanding? An evidence from an intervention study among 1548 migrant children in eastern China

Table 2 Social demographic characteristics of migrant children aged 1–4 years and their mothers before and after the implementation of EPI intervention package in Yiwu

Variables	Before interventions (N = 1136)		After interventions (N = 412)		χ ²	P
Variables	N	%	N	%	χ ²	P
Maternal age					3.533	0.060
< 30 y	716	63.0	281	68.2
≥ 30y	420	37.0	131	31.8
Maternal education level					5.844	0.211
Illiteracy	15	1.3	3	0.7
Primary school	78	6.9	26	6.3
Junior middle school	620	54.6	242	58.7
Senior middle school	315	27.7	94	22.8
College or above	108	9.5	47	11.4
Mothers working time					1.612	0.447
No job	240	21.1	82	19.9
≤ 8 h	213	18.8	89	21.6
> 8 h	683	60.1	241	58.5
Gender of child					0.247	0.619
Male	598	52.6	211	51.2
Female	538	47.4	201	48.8
Age of child					1.644	0.440
1 year-	524	46.1	204	49.5
2 years-	415	36.5	145	35.2
3–4 years	197	17.3	63	15.3
Number of children in family					0.947	0.623
1	445	39.2	171	41.5
2	608	53.5	209	50.7
≥ 3	83	7.3	32	7.8
Birth place of child					0.655	0.418
Hospital	1024	90.1	377	91.5
At home	112	9.9	35	8.5
Latest continuously living time of child					1.606	0.448
3–6 months	266	23.4	84	20.4
7–12 months	479	42.2	179	43.4
≥ 13 months	391	34.4	149	36.2
Monthly household income per capita					0.698	0.705
< 800 CNY	208	18.4	68	16.5
800–1500 CNY	589	51.8	220	53.4
> 1500 CNY	339	29.8	124	30.1

ISSN: 1471-2458