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Table 3 Factors associated with receipt of EV71 vaccination(≥1dose) by demographic characteristics for children born during 2016–2018 in Ningbo, China

From: Vaccination coverage estimates and utilization patterns of inactivated enterovirus 71 vaccine post vaccine introduction in Ningbo, China

Characteristics

EV71 vaccination (≥1dose)

EV71 vaccination on-timea

aOR(95%CI)

P

aOR(95%CI)

P

Sex

 Male

1.00(0.98–1.01)

0.082

0.99(0.97–1.01)

0.176

 Female

Reference

 

Reference

 

Immigration status

 Resident children

1.48(1.15–1.90)

0.002

1.41(1.03–1.92)

0.032

 Migrant children

1.08(0.84–1.39)

0.529

0.98(0.72–1.34)

0.895

 Foreign children

Reference

 

Reference

 

Urbanicity

 Inner

1.48(1.45–1.50)

< 0.001

1.48(1.44–1.52)

< 0.001

 Outer

Reference

 

Reference

 

Birth year

 2018

1.30(1.28–1.33)

< 0.001

4.63(4.52–4.75)

< 0.001

 2017

1.52(1.49–1.54)

< 0.001

2.69(2.62–2.76)

< 0.001

 2016

Reference

 

Reference

 

Socioeconomic level of resident areas

 High

1.45(1.42–1.48)

< 0.001

1.95(1.90–2.00)

< 0.001

 Low

Reference

 

Reference

 

Scale of immunization clinics

 Large-scaled

1.01(1.00–1.03)

0.142

1.25(1.22–1.27)

< 0.001

 Midsized

1.07(1.05–1.10)

< 0.001

0.82(0.80–0.85)

< 0.001

 Small-sized

Reference

 

Reference

 
  1. aOR Adjusted odds ratio, CI Confidence interval
  2. aEV71 vaccination on-time was defined as receiving at least 1 dose of EV71 vaccine during 6-12 months of age