Table 2 Analysis of factors associated with Hib vaccine uptake

Child characteristics

Overall

451

332(73.6)

Sex

0.644

 Female

228

170(74.6)

 Male

223

162(72.6)

Age (months)

0.111^a

 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

0.687^a

 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)

0.477^a

 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

0.024^a

 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

< 0.001^a

 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)