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 …

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 …

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 …

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 …

Objective: To assess the predictive value for clinical pregnancy outcome of β-hCG level at
13 d after embryo transfer. Methods: Retrospective study of IVF clinical pregnancies …

OBJECTIVE: To determine threshold β-hCG levels predictive of an ongoing pregnancy (OP),
live birth (LB), and multiple gestation (MG) in IVF cycles resulting from day-3 (D3) vs. day-5 …

Objective. Analysis of serum β-human chorionic gonadotropin (β-hCG) levels on
standardized days after oocyte retrieval (OR) following single blastocyst transfer to predict …

Objective To determine the effect of embryonic factors on serum beta human chorionic
gonadotropin (β-hCG) levels in pregnancy and live birth resulting after a single fresh …

Purpose: Our purpose was to assess the predictive value for pregnancy outcome of an initial
serum quantitative β-hCG measurement obtained 11 or 12 days after embryo transfer in an …

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 …