ArticleJournal of perinatology : official journal of the California Perinatal Association2022
Preterm birth among pregnant persons with severe acute respiratory syndrome Coronavirus 2 infection.
Article in Journal of perinatology : official journal of the California Perinatal Association, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
6 citing papers in PubMed, 14 citations in OpenAlex.
- Efficacy and safety of hydroxychloroquine for treatment of mild SARS-CoV-2 infection and prevention of COVID-19 severity in pregnant and postpartum women: A randomized, double-blind, placebo-controlled trial.Acta obstetricia et gynecologica Scandinavica · 2024Trial
- Mathematical Modeling of Obstetric Variables: Influence of COVID-19, Periodontal Disease and Dental Care During Pregnancy.Biomedicines · 2025Article
- Severe acute respiratory syndrome coronavirus 2 and preterm birth, clinical implications-A register-based cohort study from Sweden.Pregnancy (Hoboken, N.J.) · 2025Article
- Epidemiology and Clinical Features of COVID-19 among 4,015 Neonates in Iran: Results of the National Study from the Iranian Maternal and Neonatal Network.American journal of perinatology · 2024Article
- Vaccination, immunity, and the changing impact of COVID-19 on infant health.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Population-Based Linked Longitudinal Surveillance of Pregnant People and Their Infants: A Critical Resource for Emerging, Re-Emerging, and Persistent Threats.Journal of women's health (2002) · 2023Article
Corrections and comments
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Authors and funding
31 authors at 17 institutions in 3 countries.
Funding
Abstract
objectiveWe examined the relationship between trimester of SARS-CoV-2 infection, illness severity, and risk for preterm birth. STUDY
designWe analyzed data for 6336 pregnant persons with SARS-CoV-2 infection in 2020 in the United States. Risk ratios for preterm birth were calculated for illness severity, trimester of infection, and illness severity stratified by trimester of infection adjusted for age, selected underlying medical conditions, and pregnancy complications.
resultPregnant persons with critical COVID-19 or asymptomatic infection, compared to mild COVID-19, in the second or third trimester were at increased risk of preterm birth. Pregnant persons with moderate-to-severe COVID-19 did not show increased risk of preterm birth in any trimester.
conclusionCritical COVID-19 in the second or third trimester was associated with increased risk of preterm birth. This finding can be used to guide prevention strategies, including vaccination, and inform clinical practices for pregnant persons.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.