Background: Following maternal COVID-19 vaccination, the persistence of antibodies in sera and breast milk for mothers and infants is not well characterized. We sought to describe the persistence of antibodies through 2 months after delivery in maternal and infant serum and breast milk following maternal COVID-19 mRNA vaccination and to examine differences by receipt of booster dose during pregnancy or postpartum.
Methods: This is a prospective cohort study with enrollment from July 2021 to January 2022 at 9 US academic sites.
Background: Chronic kidney disease is a significant cause of adverse obstetric outcomes. However, there are few studies assessing the risk of severe maternal morbidity and mortality among patients with chronic kidney disease and no studies assessing the association between individual indicators of severe maternal morbidity and chronic kidney disease.
Objective: To evaluate the risk of severe maternal morbidity and mortality among pregnant patients with chronic kidney disease.
Objective: Non-Hispanic Black individuals are disproportionately affected by preterm birth (PTB), a major driver of the racial disparity in infant mortality in the United States. The objective of this study is to identify indicators of social determinants of health (SDoH) that contribute to preterm birth amongst non-Hispanic Black individuals.
Study Design: Population-based retrospective case-control study of U.