Comparison of the perinatal outcomes of live-born singletons between blastocysts and cleavage-stage embryo transfer in FET cycles via propensity score matching.

ABSTRACT:

Background

In previous studies, the incidences of premature births and large for newborn gestational age (LGA ) infants were higher with blastocyst transfer than with cleavage-stage embryo transfer in infants conceived via frozen embryo transfer (FET) cycles. However, those previous studies reported unbalanced baseline characteristics between the blastocyst transfer group and the cleavage embryo transfer group. Therefore, in this study, we used propensity score matching to compare the birth weight and newborn gestational age of live-born singletons between blastocyst and cleavage-stage embryo transfer in FET cycles.

Methods

From January 2018 to April 2023, 706 cases of singleton delivery resulting from FET cycles that met the inclusion and exclusion criteria were included in

SUBMITTER: Zeng Y 

PROVIDER: S-EPMC11852848 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature