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Table 4 Characteristics of the neonate in vaccinated and unvaccinated pregnant women

From: The impact of SARS-CoV-2 infection on vaccinated versus unvaccinated pregnant women: a retrospective cohort study

 

Total

147

Not vaccinated

106

Vaccinated

41

p

Risk

(95% CI)

Weight

     

< 2500 or > 4000 g

22 (15.0)

13 (12.3)

9 (22.0)

0.140

1.79 (0.83–3.86)

2500–4000 g

125 (85.0)

93 (87.7)

32 (78.0)

2.19 (0.53–9.06)

Sex

     

Male

79 (63.7)

58 (55.7)

20 (48.8)

0.453

0.88 (0.61–1.25)

Female

68 (46.3)

47 (44.3)

21 (51.2)

1.16 (0.80–1.67)

Cord arterial pH

    

< 7.20

20 (16.8)

14 (16.1)

6 (18.8)

0.731

1.17 (0.49–2.77)

≥ 7.20

99 (83.2)

73 (83.9)

26 (81.2)

0.97 (0.80–1.17)

1-minute Apgar score

    

< 7

8 (5.4)

8 (7.5)

0 (0)

0.070

-

≥ 7

139 (94.6)

98 (92.5)

41 (100)

1.08 (1.02–1.14)

5-minute Apgar score

    

< 7

3 (2)

3 (2.8)

0 (0)

0.276

-

≥ 7

144 (98)

103 (97.2)

41 (100)

1.03 (1.0–1.06)

Neonatal destination

    

Maternity

131 (89.1)

95 (89.6)

36 (87.8)

0.751

0.98 (0.86–1.12)

Neonatal ICU

16 (10.9)

11 (10.4)

5 (12.2)

1.18 (0.44–3.18)

Neonatal complications

    

Yes

41 (27.9)

23 (21.7)

10 (24.4)

0.726

1.12 (0.59–2.15)

No

106 (72.1)

83 (78.3)

31 (75.6)

0.97 (0.79–1.18)

Lactation

     

Maternal

124 (86.1)

91 (88.3)

33 (80.5)

0.218

0.91 (0.77–1.08)

Artificial

20 (13.9)

12 (11.7)

8 (19.5)

1.68 (0.74–3.80)

Skin-to-skin

     

Yes

120 (82.2)

83 (79)

37 (90.2)

0.112

1.14 (0.99–1.31)

No

26 (17.8)

22 (21)

4 (9.8)

0.47 (1.17–1.27)

  1. Data shown as number of responses (percentage). p value calculated by Chi square test. CI, confidence interval. Neonatal complications: Neonatal complications were defined as newborns with a pH < 7.20 and an Apgar score < 7 at 5 min of life. ICU, intensive care unit