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Table 1 Demographic characteristics of pregnant or postpartum women

From: Influenza vaccination during pregnancy and influencing factors in Korea: A multicenter questionnaire study of pregnant women and obstetrics and gynecology doctors

Characteristics

Vaccinated (n = 330)

Unvaccinated (n = 192)

p-value

Maternal age (yrs) (mean ± SD)

33.32 ± 3.85

33.18 ± 4.53

0.069

Gestational age (weeks) (mean ± SD)

31.28 ± 20.27

26.31 ± 9.12

0.002

Pregnancy period

  

0.002

 ≤ 13 weeks (n, %)

17 (5.2)

25 (13.0)

 

14–27 weeks (n, %)

67 (20.3)

45 (23.4)

 

 ≥ 28 weeks (n, %)

230 (69.7)

108 (56.3)

 

Postpartum (n, %)

16 (4.8)

14 (7.3)

 

Nulliparous women (n, %)

219 (66.4)

122 (63.5)

0.514

Assisted reproduction (n, %)

29 (6.6)

19 (9.9)

0.790

Education (college degree or higher) (n, %)

304 (92.1)

168 (87.5)

0.084

Metropolitan residence (n, %)

270 (81.8)

15 (79.2)

0.458

Occupation

  

0.186

Housewife (n, %)

145 (43.9)

73 (38.0)

 

Other than housewife (n, %)

185 (56.1)

119 (62.0)

 

Ever received information about influenza vaccination during pregnancy (n, %)

321 (97.3)

155 (80.7)

 < 0.001

Source of information

  

 < 0.001

OBGYNa doctor (n, %)

239 (72.4)

83 (43.2)

 

Non-OBGYN doctors, public health care, media, friends, or family (n, %)

91 (27.6)

109 (56.8)

 

Influenza vaccination in a previous pregnancy (n, %)b

71 (64.5)

34 (54.8)

0.205

  1. aOBGYN, obstetrics and gynecology; bresponses from parous women
  2. Values are presented as mean ± standard deviation or n (%)