Birthweight After Frozen Embryos Formed on the Fifth Day Versus the Sixth Day: A Retrospective Analysis Including 17,127 Singleton Newborns

BackgroundTransferring blastocysts frozen on day 6 (D6) may adversely affect the pregnancy rate compared with day 5 (D5). Moreover, it remains unclear whether delayed embryo transfer affects neonatal birth weight.MethodsA retrospective cohort study consisting of 17,127 singleton births from single f...

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Bibliographic Details
Main Authors: Junlan Yang, Ze Wang, Hairu Cao, Lu Liu, Qiaona Yuan, Haiyan Xu, Rong Tang
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-05-01
Series:Frontiers in Endocrinology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fendo.2022.868335/full