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Table 1 Characteristics of the participants included in the study

From: Anti-SARS-CoV-2 IgA and IgG in human milk after vaccination is dependent on vaccine type and previous SARS-CoV-2 exposure: a longitudinal study

 

BioNtech/Pfizer

N=34

Moderna

N=20

Oxford/AstraZeneca

N=32

p-value

Maternal characteristics

 Age (years)

34.2 ±4.1

34.8 ±3.1

34.7 ±3.6

0.802

 Chronic diseases (hypothyroidism, heart disease)

8 (23.5%)

5 (33.3%)

6 (18.75%)

0.841

 Medication

5 (14.7%)

3 (14.3%)

3 (9.4%)

0.782

 Gestational age (weeks)

39.2 ±2.1

39.4 ±1.4

39.9 ±1.4

0.246

 Education degree (high-degree university studies)

32 (94.1%)

19 (95.2%)

29 (90.6%)

0.792

 SARS-CoV-2-positive PCR before vaccine

6 (17.1%)

2 (9.5%)

0 (0.0%)

-

Infant characteristics

 Gender (female, %)

10 (29.4%)

9 (45%)

17 (53.1%)

0.141

 Mode of birth (C-section, %)

10 (29.4%)

6 (30%)

6 (18.7%)

0.535

 Weight at birth (g)

3308.4 ±420.6

3495.0 ±616.8

3457.8 ±369.1

0.262

 Length at birth (cm)

50.8 ±2.1

50.5 ±2.4

51.1 ±1.8

0.591

 Infant age at maternal vaccination (month)

14.3±11

11.0±5.2

12.4±7.6

0.385

 Exclusive breastfeeding at maternal vaccination (%)

5 (14.7%)

3 (15%)

4 (12.5%)

0.956

  1. Categorical data is presented as positive cases (% of the total population). Chi-squared test and one-way ANOVA were used to test significant differences in clinical categorical and continuous variables, respectively, according to vaccine