Background Previous studies have investigated the effect of maternal age on assisted
reproductive technology success rates. However, little is known about the relationship …

Background Many studies have considered maternal age as a determinant factor for
success in assisted reproductive technologies (ART), but the potential role of paternal age …

The aim of this study was to investigate whether maternal age had an effect on the
birthweight of singletons delivered from frozen-thawed blastocyst transfer (FBT) cycles. A …

STUDY QUESTION Does the endometrial preparation protocol for frozen embryo transfer
(FET) have an impact on perinatal outcomes? SUMMARY ANSWER Singleton newborns …

Background Transferring blastocysts frozen on day 6 (D6) may adversely affect the
pregnancy rate compared with day 5 (D5). Moreover, it remains unclear whether delayed …

Objective To explore whether the duration of estrogen treatment before progesterone
application affects neonatal and perinatal outcomes in artificial frozen embryo transfer (FET) …

The present study was performed to investigate whether maternal body mass index (BMI)
affected the live birth (LB) outcomes of frozen embryo transfers (FET) in patients who …

Research question What is the effect of frozen embryo transfer (FET) on infant birth weight
outcomes and which variables predic large-for-gestational age (LGA) infants. Design In a …

Background Physicians need an appropriate embryo transfer strategy to address the
challenge of reducing multiple birth rates, while maintaining the couples' live birth rate …

Background To explore the effect of pre-pregnancy body mass index (BMI) on neonatal
outcomes among singletons born after frozen embryo transfer (FET). Methods This large …