Abstract
Initially, there was little data on the safety of immunization against
COVID-19 infection in pregnant women. However, previous studies revealed
no safety concerns for pregnant women or newborns who received an mRNA
COVID-19 vaccine during pregnancy. Therefore, this study aimed to
investigate the effects of COVID-19 vaccination on perinatal outcomes.
Methods: This cross-sectional study. It started from January 2022 to
June 2022. The questionnaire was developed and validated by experts.
This study included all women admitted to the postpartum ward who were
more than 18 years old and had received the COVID-19 vaccine. The study
excluded women without proof of their vaccination status or who could
not complete the questionnaire. The primary outcome was the effect of
COVID-19 vaccination on gestational age and birth weight. Results: A
total of 365 participants. The mean gestational age of the unvaccinated
women was 38.83 ± 1.62 weeks (p < 0.001), higher than that of
vaccinated women (37.69 ± 2.9 weeks). However, the average birth weight
for the unvaccinated women was 2.96 ± 0.4 kg (p = 0.89) and for
vaccinated women (2.97 ± 0.66 kg). Conclusion: COVID-19 vaccination,
regardless of the type of vaccine received before, during, or after
pregnancy, is not associated with any unfavorable perinatal outcomes.