SARS-CoV-2 Infection Among Pregnant People at Labor and Delivery and Changes in Infection Rates in the General Population: Lessons Learned From Illinois
- 5 May 2022
- journal article
- research article
- Published by SAGE Publications in Public Health Reports
- Vol. 137 (4), 672-678
- https://doi.org/10.1177/00333549221091826
Abstract
Objectives: The Illinois Department of Public Health (IDPH) assessed whether increases in the SARS-CoV-2 test positivity rate among pregnant people at labor and delivery (L&D) could signal increases in SARS-CoV-2 prevalence in the general Illinois population earlier than current state metrics. Materials and Methods: Twenty-six birthing hospitals universally testing for SARS-CoV-2 at L&D voluntarily submitted data from June 21, 2020 through January 23, 2021, to IDPH. Hospitals reported the daily number of people who delivered, SARS-CoV-2 tests, and test results as well as symptom status. We compared the test positivity rate at L&D with the test positivity rate of the general population and the number of hospital admissions for COVID-19-like illness by quantifying correlations in trends and identifying a lead time. Results: Of 26 633 reported pregnant people who delivered, 96.8% (n = 25 772) were tested for SARS-CoV-2. The overall test positivity rate was 2.4% (n = 615); 77.7% (n = 478) were asymptomatic. In Chicago, the only region with a sufficient sample size for analysis, the test positivity rate at L&D (peak of 5% on December 7, 2020) was lower and more stable than the test positivity rate of the general population (peak of 14% on November 13, 2020) and lagged hospital admissions for COVID-19-like illness (peak of 118 on November 15, 2020) and the test positivity rate of the general population by about 10 days (Pearson correlation = 0.73 and 0.75, respectively). Practice Implications: Trends in the test positivity rate at L&D did not provide an earlier signal of increases in Illinois's SARS-CoV-2 prevalence than current state metrics did. Nonetheless, the role of universal testing protocols in identifying asymptomatic infection is important for clinical decision making and patient education about infection prevention and control.Keywords
This publication has 18 references indexed in Scilit:
- Evaluating Data TypesPublished by The National Academies Press ,2020
- Universal Screening for SARS-CoV-2 in Women Admitted for DeliveryThe New England Journal of Medicine, 2020
- Caring for Pregnant Patients with COVID-19: Practical Tips Getting from Policy to PracticeAmerican Journal of Perinatology, 2020
- Screening all pregnant women admitted to labor and delivery for the virus responsible for coronavirus disease 2019American Journal of Obstetrics and Gynecology, 2020
- Clinical Characteristics of 138 Hospitalized Patients With 2019 Novel Coronavirus–Infected Pneumonia in Wuhan, ChinaJAMA, 2020
- Clinical features of patients infected with 2019 novel coronavirus in Wuhan, ChinaThe Lancet, 2020
- The REDCap consortium: Building an international community of software platform partnersJournal of Biomedical Informatics, 2019
- How to maintain surveillance for novel influenza A H1N1 when there are too many cases to countThe Lancet, 2009
- Research electronic data capture (REDCap)—A metadata-driven methodology and workflow process for providing translational research informatics supportJournal of Biomedical Informatics, 2008
- Published by MRE Press