Publication date: Jul 19, 2024

This study aimed to compare the pregnancy and perinatal outcomes of women with and without severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection during pregnancy. Women who delivered in an obstetric unit from March 2022 to October 2022 were recruited. The history of vaccination and SARS-CoV-2 infection during pregnancy was recorded. The pregnancy and perinatal outcomes of women with and without SARS-CoV-2 infection were compared. A total of 1015 women were recruited – 41. 5% had SARS-CoV-2 infection during pregnancy and 25. 2% were unvaccinated. The incidences of preeclampsia, gestational diabetes mellitus and caesarean section were similar between the two groups. There were more preterm deliveries (9. 0% vs 5. 1%, P = 0. 01) and more late preterm deliveries of between 33 and 36 + 6 weeks (6. 2% vs. 3. 7%, P = 0. 03) in the SARS-CoV-2 infection group. There were no statistically significant differences between the two groups in perinatal outcomes, including birthweight, incidence of small for gestational age, low Apgar scores, and neonatal intensive care or special care baby unit admissions. There were no differences in pregnancy and perinatal outcomes between women infected in the first/second trimester and those infected in the third trimester, except for lower mean birthweight (3180 g vs. 3292 g, P = 0. 04). There were no major differences in pregnancy outcome between vaccinated and unvaccinated women. The pregnancy and perinatal outcomes of women who were infected with SARS-CoV-2 during gestation appear favourable.

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