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Trends in COVID-19 diagnoses and outcomes in infants hospitalized in the neonatal intensive care unit

Abstract

Objective

Characterize the prevalence of coronavirus disease 2019 (COVID-19) diagnosis among mothers with infants hospitalized in 294 neonatal intensive care units (NICUs), and demographics and outcomes of infants with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) exposure in utero.

Study design

Cohort study of infants discharged from NICUs 01/2020–09/2021. We defined groups based on infant diagnosis, infant testing, and maternal SARS-CoV-2 infection status. We compared demographics, clinical characteristics, and outcomes.

Results

Of 150,924 infants, 94% had no COVID-related diagnosis or test; 247 (0.2%) infants tested positive for COVID-19 and were more likely to require mechanical ventilation. Infants with unknown maternal status and negative testing were more commonly premature, outborn, and had longer hospitalizations.

Conclusion

In this large cohort of hospitalized infants, most had no known exposure to COVID-19. Adverse outcomes and mortality were rare. Further studies are needed to evaluate the long-term effects of COVID-19 in this population.

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Fig. 1: Maternal and Infant COVID-19 Trends.

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Data availability

The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Funding

This work was supported by Duke Clinical Research Institute’s R25 Summer Training in Academic Research (STAR) Program (grant #5R25HD076475-09). This work was also funded by a COVID-19 Supplement (3U24TR001608-05S2), in part by the Duke University-Vanderbilt University Medical Center Trial Innovation Center (U24TR001608), and by the Vanderbilt University Medical Center Recruitment Innovation Center (U24TR001579), which is part of the National Center for Advancing Translational Sciences (NCATS) Trial Innovation Network. This work is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.

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Authors and Affiliations

Authors

Contributions

EBH conceptualized and designed the study, and contributed to the data interpretation, the drafting of the initial manuscript, and reviewing and revising the manuscript. RHC contributed to the data interpretation and the critical revision of the manuscript for important intellectual content. PBS contributed to the data interpretation and the critical revision of the manuscript for important intellectual content. DKB contributed to the data interpretation and the critical revision of the manuscript for important intellectual content. KOZ contributed to the data interpretation and the critical revision of the manuscript for important intellectual content. KAA contributed to the data interpretation and the critical revision of the manuscript for important intellectual content. CKB contributed to the data interpretation and the critical revision of the manuscript for important intellectual content. HW contributed to the data interpretation and the manuscript drafting. RS contributed to the data interpretation and the manuscript drafting. AB contributed to the data interpretation and the manuscript drafting. CON contributed to the data interpretation and the manuscript drafting. JA contributed to the data interpretation and the manuscript drafting. ON contributed to the data interpretation and the manuscript drafting. RGG contributed to the conception and design of the study, supervised the drafting of the manuscript, interpreted the data analyses, and reviewed and revised the manuscript. RGGreenberg had full access to all the data and takes responsibility for the integrity of the data and the accuracy of the data analysis. All authors approved the final manuscript as submitted and agree to be accountable for all aspects of the work.

Corresponding author

Correspondence to Rachel G. Greenberg.

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Competing interests

RGG has received support from industry for research services (https://dcri.org/about-us/conflict-of-interest/). The authors have no other conflicts of interest relevant to this article to disclose.

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High school or college student affiliated with the Duke Clinical Research Institute’s R25 Summer Training in Academic Research (STAR) Program: Hannah Won, Rachel Ssengonzi, Avi Belbase, Courage O. Ndalama, Jennifer An, Ogugua Nwaezeigwe.

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Heyward, E.B., Clark, R.H., Smith, P.B. et al. Trends in COVID-19 diagnoses and outcomes in infants hospitalized in the neonatal intensive care unit. J Perinatol 44, 35–39 (2024). https://doi.org/10.1038/s41372-023-01725-1

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