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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