This study was a retrospective and case-controlled study that included 12073 pregnant women over 35 years-of-age and gave birth in Hangzhou, China between 2018 and 2022. We investigated the perinatal
Abstract Context: The association between maternal levels of thyroid stimulating hormone (TSH), free thyroxine (FT4) and thyroid peroxidase antibody (TPOAb) status and stillbirth has not
Data on labor and delivery, prenatal care, and any infections or illnesses during pregnancy or at the time of discharge Study Description A five-year, multi-site, prospective cohort study about stress
