To investigate whether the initial beta-human chorionic gonadotropin (β-hCG) levels and
their rate of increase differ after single fresh and frozen blastocyst transfers, and whether …

Purpose The aim of the present study was to evaluate if the live birth predictive values of β-
hCG levels differ in fresh and vitrified-warmed blastocyst transfer cycles. Methods In the …

We previously explored the associations between β-hCG on the 14th day post–embryo
transfer (ET) and reproductive outcomes and established a series of cutoff values to predict …

Mid-trimester beta-human chorionic gonadotropin (BHCG) levels are considerably higher in
pregnancies resulting from frozen embryo transfer (FET) compared with fresh (FRET) …

Objective To determine the relationship between serum levels of the β-subunit of human
chorionic gonadotropin (β-hCG) on day 24 of pregnancy during a frozen embryo transfer …

Objective To study the predictive value of serum β-hCG on day 5 after frozen-thawed embryo
transfer (FET) to predict pregnancy outcomes and to establish cut-off values for very early …

Purpose Specific serum beta human chorionic gonadotropin (β-hCG) parameters that can
predict live birth after an embryo transfer have yet to be defined. Methods We performed a …

Research question Does the blastocyst development stage on embryo transfer day affect
serum β-human chorionic gonadotrophin (β-HCG) concentration 9 and 16 days after embryo …

Purpose We retrospectively examined a large cohort of females who underwent single
blastocyst transfer to determine if initial β-human chorionic gonadotrophin (β-hCG) levels on …

Purpose The objective of this study is to identify the pregnancy outcomes based on day-16 β-
hCG level assessed with modern assays, in fresh single embryo transfers. Methods A …