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 …

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 …

The aim of this study is to compare the serum β-hCG values post transfer of a cleavage
stage embryo versus a blastocyst stage embryo at equal time intervals post oocyte retrieval …

Objective To investigate the pregnancy outcomes of patients with low serum β-hCG level 14
days after day 3 embryo transfer. Methods A retrospective study was performed with 723 …

Purpose The present study investigated the role of β-hCG in predicting reproductive
outcomes and established optimal β-hCG cutoff values in women undergoing cleavage …

Objective The objectives of the study were to correlate live birth rate with the initial level of β-
hCG in all patients undergoing embryo transfer and develop a predictive model of live birth …

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 …

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 …

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 …

Background Although prior work has attempted to predict pregnancy outcomes by assaying
serum β-hCG levels after blastocyst transfer, no study has focused on pregnancy outcomes …