STUDY QUESTIONS What are the risks of adverse outcomes in singletons born after frozen-
thawed embryo transfer (FET)? SUMMARY ANSWER Singletons born after FET have a …

BACKGROUND The number of children born after frozen embryo transfer (FET) is steadily
rising. However, studies on obstetric and perinatal outcomes are limited. Our primary aim …

STUDY QUESTION When do the differences in birth weights become apparent between
singletons born after frozen embryo transfer (FET) and fresh embryo transfer (fresh ET) …

Objective To explore obstetric and perinatal outcomes in singleton pregnancies occurring as
a result of fresh and thawed frozen embryo transfer using anonymized Human Fertilisation …

BACKGROUND Initial observational studies and a systematic review published 5 years ago
have suggested that obstetric and perinatal outcomes are better in offspring conceived …

Background Frozen embryo transfer is associated with better perinatal outcome regarding
preterm birth and low birthweight, yet higher risk of large for gestational age and …

BACKGROUND There is increasing use of cryopreservation in IVF. This study compared
singletons born after cryopreservation with singletons born after fresh IVF cycles and …

Objective To ascertain whether perinatal outcomes are affected by vitrification and/or
controlled ovarian hyperstimulation (COH). Design Register-based cohort study. Setting Not …

OBJECTIVE: To examine infant outcome of singletons born after cryopreservation of
embryos (Cryo). DESIGN: National population-based controlled follow-up study. SETTING …

Objective To investigate whether obstetric and perinatal outcomes in pregnancies differ after
different frozen embryo transfer (FET) protocols. Design Register-based cohort study. Setting …