BACKGROUND: The 2020 Multicentre Abdominal vs Vaginal Randomised Intervention of Cerclage trial found that transabdominal cerclage placed via open laparotomy reduces the risk of spontaneous preterm birth before 32 weeks relative to transvag…
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…
OBJECTIVE: To compare the effectiveness and safety of 1 cycle of assisted reproductive technology (ART) vs. 3 cycles of intrauterine insemination (IUI). DESIGN: Target trial emulation using observational data. SETTING: A healthcare claims…
IMPORTANCE: Individuals conceived with assisted reproductive techniques (ARTs) could be at elevated risk of psychiatric disorders owing to potential adverse effects of the procedures themselves, or because such traits or their risk factors …
OBJECTIVES: To examine the long-term impact of assisted reproductive techniques (ART) on offspring neurodevelopment, accounting for parental factors and the role of infertility. METHODS: Linkage of national registers allowed follow-up of >…