COVID-19 mRNA vaccination status and concerns among pregnant women in Japan: a multicenter questionnaire survey

Table 3 Perinatal outcomes in the mRNA-vaccinated and non-mRNA-vaccinated groups

	Postpartum women vaccinated during pregnancy	Postpartum women not vaccinated during pregnancy	p value*
Gestational weeks at delivery (Median)	38 (38–39)	38 (37–39)
Preterm birth	7.2 (60/831)	13.7 (29/211)	0.002
Caesarean section	33.2 (276/831)	42.2 (89/211)	0.015
Neonatal Birth weight(g)	2904 ± 484	2845 ± 602	0.177
Neonatal Birth height (cm)	48.6 ± 2.7	48.2 ± 3.3	0.103
Congenital disease among all neonates	4.1 (35/855)	3.6 (8/220)	0.758

Data are shown as the number or mean ± standard deviation or median (interquartile range) or percentage (number of applicable women/number of women targeted for analysis). *Student's t-test, or χ2 test
The number of subjects is calculated by excluding the missing values from the total number of each group

ISSN: 1471-2393