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Table 2 Analysis of factors associated with Hib vaccine uptake

From: Factors associated with uptake of Haemophilus influenzae type b vaccination in Shanghai, China

Variables Total participants No. vaccinated (%) Bivariate analysis Multivariate analysis
P value aOR (95% CI) P value
Child characteristics      
Overall 451 332(73.6)    
Sex    0.644   
 Female 228 170(74.6)    
 Male 223 162(72.6)    
Age (months)    0.111a   
 1–11 204 146(71.6)    
 12–23 102 81(79.4)    
 24–35 64 50(78.1)    
 36–47 43 32(74.4)    
 48–59 26 18(69.2)    
≥ 60 12 5(41.7)    
Ethnicity    0.687a   
 Han 443 325(73.4)    
 Others 8 7(87.5)    
Resident district    0.021   
 Jiading 136 110(80.9)    
 Jing’an 125 85(68)    
 Changning 124 95(76.6)    
 Others 66 42(63.6)    
Having allergy    0.692   
 No 395 292(73.9)    
Yes 56 40(71.4)    
Parent characteristics      
Mother age (years)    0.477a   
 20–29 170 130(76.5)    
 30–39 266 191(71.8)    
 40–49 12 8(66.7)    
Mother education    0.907   
 Middle or high school 80 60(75.0)    
 College 304 222(73.0)    
 Post graduate or higher 64 48(75.0)    
Mother occupation    0.010   
 Health workers 63 38(60.3)   1.00  
 Non-health workers 387 293(75.7)   2.33(1.32–4.13) 0.004
Father age (years)    0.582   
 20–29 96 70(72.9)    
 30–39 319 238(74.6)    
  ≥ 40 36 24(66.7)    
Father education    0.259   
 Middle or high school 86 64(74.4)    
 College 284 214(75.4)    
 Post graduate or higher 80 53(66.3)    
Father occupation    0.024a   
 Health workers 441 328(74.4)    
 Non-health workers 10 4(40.0)    
Family annual income (1000 Yuan)    0.278   
  ≤ 9 60 46(76.7)    
 10–19 173 133(76.9)    
  ≥ 20 218 153(70.2)    
Being aware of Hib    0.036   
 No 251 175(69.7)   1.00  
 Yes 200 157(78.5)   1.75(1.12–2.74) 0.013
Caregivers being informed of Hib vaccines    < 0.001a   
 No 31 0(0)    
 Yes 420 332(79.0)    
Timeliness of NIP vaccines    0.120   
 Yes 440 321(73.0)    
 No 9 9(100) .   
Distance from home to immunization clinics (km)    0.244   
  < 1 33 27(81.8)    
 1–4.9 346 248(71.7)    
  ≥ 5 71 56(78.9)    
Time spent on each round-trip of vaccination (hours)    0.910   
  < 0.5 107 77(72.0)    
 0.5–0.9 203 150(73.9)    
  ≥ 1 140 104(74.3)    
  1. aOR adjusted odds ratio
  2. NIP National Immunization Program
  3. aCalculated using Fisher’s exact test