Objective To determine the clinical manifestations, risk factors, and maternal and perinatal
outcomes in pregnant and recently pregnant women with suspected or confirmed coronavirus …

Objective To evaluate the effects of dietary and lifestyle interventions in pregnancy on maternal
and fetal weight and to quantify the effects of these interventions on obstetric outcomes. …

Background The COVID-19 pandemic has had a profound impact on health-care systems
and potentially on pregnancy outcomes, but no systematic synthesis of evidence of this effect …

Objectives To evaluate the association between thyroid autoantibodies and miscarriage and
preterm birth in women with normal thyroid function. To assess the effect of treatment with …

Pre-eclampsia affects 3–5% of pregnancies and is traditionally diagnosed by the combined
presentation of high blood pressure and proteinuria. New definitions also include maternal …

Safety and effectiveness of COVID-19 vaccines during pregnancy is a particular concern
affecting vaccination uptake by this vulnerable group. Here we evaluated evidence from 23 …

The Delphi technique is a way of obtaining a collective view from individuals about issues
where there is no or little definite evidence and where opinion is important. The process can …

Background Screening for critical congenital heart defects in newborn babies can aid in
early recognition, with the prospect of improved outcome. We assessed the performance of …

Background Screening for congenital heart defects relies on antenatal ultrasonography and
postnatal clinical examination; however, life-threatening defects often are not detected. We …

Objective To consolidate evidence from systematic reviews and meta-analyses investigating
the association between reproductive factors in women of reproductive age and their …