Abstract
Objective
To estimate the effect of clinical chorioamnionitis on the risk of patent ductus arteriosus (PDA).
Study design
A secondary analysis of all deliveries >23 gestational weeks from the U.S. Consortium on Safe Labor (CSL) study. The primary exposure was a clinical diagnosis of chorioamnionitis, and the outcome was a diagnosis of PDA. Generalized estimating equations with estimated error variance for women with multiple deliveries were utilized. Models adjusted for age, race, region, delivery year, body mass index, infant sex, multiple gestation, mode of delivery, and antenatal corticosteroid exposure.
Results
Among 228,438 deliveries, a diagnosis of PDA was more frequent with chorioamnionitis exposure versus without (9.2% vs. 3.0%; OR: 3.25; 95% CI: 2.92–3.62). Chorioamnionitis was associated with higher adjusted odds of PDA (AOR: 2.18; 95% CI: 1.93–2.45). In sensitivity analyses, the association between chorioamnionitis and PDA held after adjustment for gestational age at delivery (AOR: 1.28; 95% CI: 1.13–1.44).
Conclusions
Chorioamnionitis was associated with increased odds of PDA. Robust exposure and outcome ascertainment with careful assessment of confounding is needed to further investigate this epidemiologic association.
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Acknowledgements
Institutions involved in the Consortium include, in alphabetical order: Baystate Medical Center, Springfield, MA; Cedars-Sinai Medical Center Burnes Allen Research Center, Los Angeles, CA; Christiana Care Health System, Newark, DE; Georgetown University Hospital, MedStar Health, Washington, DC; Indiana University Clarian Health, Indianapolis, IN; Intermountain Healthcare and the University of Utah, Salt Lake City, Utah; Maimonides Medical Center, Brooklyn, NY; MetroHealth Medical Center, Cleveland, OH.; Summa Health System, Akron City Hospital, Akron, OH; The EMMES Corporation, Rockville MD (Data Coordinating Center); University of Illinois at Chicago, Chicago, IL; University of Miami, Miami, FL; and University of Texas Health Science Center at Houston, Houston, Texas.
Acknowledgement of financial support
Supported by the Intramural Research Program of the National Institutes of Health, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD). The Consortium on Safe Labor was funded by the Intramural Research Program of the NICHD, through Contract No. HHSN267200603425C. The study was funded by the Intramural Research Program of the Eunice Kennedy Shriver National Institute of Child Health and Human Development. Intramural investigators designed the study and data was collected by clinical site investigators. The corresponding author has full access to the data and final responsibility for preparation and submission of the paper for publication. Additional funding support for MML was received from NIH K24 HL143283.
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This manuscript was presented as an oral presentation at the Infectious Diseases for Obstetrics and Gynecology (IDSOG) Annual Meeting, August 15, 2020.
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Green, C.A., Westreich, D., Laughon, M.M. et al. Association of chorioamnionitis and patent ductus arteriosus in a national U.S. cohort. J Perinatol 41, 119–125 (2021). https://doi.org/10.1038/s41372-020-00866-x
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DOI: https://doi.org/10.1038/s41372-020-00866-x
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