786 Neonatal outcomes in pregnant women with diagnosis of COVID-19

Abstract

Objective It is unclear whether infection with COVID-19 during pregnancy increases the risk of adverse neonatal outcomes. We tested the hypothesis that a diagnosis of COVID-19 during pregnancy increases the risk of neonatal respiratory morbidity and other adverse neonatal outcomes.

Study Design: Retrospective analysis of prospectively collected data from two labor and delivery units with universal COVID-19 testing policy between March 1 and May 31, 2020. Pregnant women with singleton pregnancies who delivered during the study period and underwent testing for COVID-19 at any point in their pregnancy were eligible. The primary outcome was a composite of neonatal respiratory morbidity defined as the occurrence of any one of the following: respiratory distress syndrome, transient tachypnea of the newborn, and need for respiratory support. The risk of neonatal morbidity with and without a COVID-19 diagnosis were compared using univariable and multivariable analyses. Stratified analysis compared the risks of adverse neonatal outcomes in symptomatic and asymptomatic patients with COVID-19 to those without COVID-19.

Results: Of 515 subjects meeting inclusion criteria, 55 (10.7%) tested positive for COVID-19; 19 (34.6%) were asymptomatic and 36 (65.4%) were symptomatic. No neonate tested positive for COVID-19. Rates of the primary outcome, composite neonatal respiratory morbidity, were not significantly different in patients with and without COVID-19 (21.8% vs 19.6%, P=0.692). There was no significant difference in the risk of neonatal respiratory morbidity in a Cox regression model accounting for time from diagnosis to delivery, and adjusting for gestational age at delivery, mode of delivery, and maternal diabetes (adjusted hazard ratio: 0.62; 95% CI 0.35, 1.09). There were no significant differences in any of the secondary outcomes in patients with COVID-19 who were asymptomatic or symptomatic (Table).

Conclusion: A diagnosis of COVID-19 during pregnancy does not appear to increase the risk of neonatal morbidity. These data may be useful in counseling women diagnosed with COVID-19 during pregnancy.