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 …

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 To evaluate the relationship between serum β-human chorionic gonadotropin
(HCG) levels and early pregnancy outcomes in women who became pregnant using …

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 …

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 …

OBJECTIVE: To determine whether elements of treatment associated with faster doubling
times of total β-hCG in serum (β-t2) in pregnant patients are also associated with a higher …

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 …

OBJECTIVE: To compare β-hCG levels measured as the first pregnancy test in women who
conceived after in vitro maturation (IVM) or IVF. DESIGN: Retrospective matched cohort …

OBJECTIVE: Low initial serum βhCG is a good predictor of early pregnancy failure. We
sought to determine the contribution of treatment variables and the predictive value of early …

Background: Pregnancies achieved through in-vitro fertilisation (IVF) are associated with
adverse first trimester outcomes in comparison to spontaneously achieved pregnancies. In …