STUDY QUESTION: To what extent is preconception maternal or paternal coronavirus disease 2019 (COVID-19) vaccination associated with miscarriage incidence? SUMMARY ANSWER: COVID-19 vaccination in either partner at any time before conceptio…
ObjectiveTo evaluate the association between seasonal influenza vaccination and miscarriage using data from an ongoing, prospective cohort study.MethodsWe analyzed 2013-2022 data from PRESTO (Pregnancy Study Online), a prospective prepregna…
PURPOSE: To evaluate the relationships among history of asthma, asthma severity, and spontaneous abortion (SAB). METHODS: Pregnancy Study Online is a preconception cohort study of North American couples. During the preconception period, fe…
We sought to determine the relationship of fibroids to pregnancy loss in a prospective cohort in which fibroid status was uniformly documented in early pregnancy. Participants had an intake interview, transvaginal ultrasonography, computer-…