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Table 3 Immunization registration rate and EPI card holding rate among migrant children aged 1–4 years before and after the implementation of EPI intervention package in Yiwu

From: 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

Variables   Immunization registration rate before/after intervention EPI card holding rate before/after intervention
Before (n/N, %) After (n/N, %) χ 2 P Before (n/N, %) After (n/N, %) χ 2 P
Age of child 1 year- 472/524, 90.1 190/204, 93.1 1.318 0.251 490/524, 93.5 197/204, 96.5 2.039 0.153
  2 years- 359/415, 86.5 133/145, 91.7 2.275 0.132 372/415, 89.6 139/145, 95.8 4.462 0.035
  3–4 years 162/197, 82.2 56/63, 88.9 1.108 0.292 171/197, 86.8 58/63, 92.1 0.807 0.369
Latest continuously living time of child 3–6 months 210/266, 78.9 71/84, 84.5 0.927 0.336 229/266, 86.1 77/84, 91.7 1.335 0.248
  7–12 months 430/479, 89.8 164/179, 91.6 0.319 0.572 438/479, 91.4 169/179, 94.4 1.222 0.269
  ≥13 months 353/391, 90.3 144/149, 96.6 5.124 0.024 366/391, 93.6 148/149, 96.6 6.511 0.011
Total   993/1136, 87.4 379/412, 91.9 5.843 0.016 1033/1136, 90.9 394/412, 95.6 8.621 0.003