ArticleFrontiers in endocrinology2024
The effect of an extended culture period on birth weight among singletons born after single or double vitrified embryo transfer.
Article in Frontiers in endocrinology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- The length of the embryo culture in assisted reproductive technology does not have a major impact on newborn DNA methylation.Bioscience reports · 2026Article
- Redefining success in assisted reproductive technologies: the Embryo-Maternal-Offspring Continuum Framework.Journal of assisted reproduction and genetics · 2026Review
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Authors and funding
4 authors.
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Abstract
Aim: To evaluate the effect of an extended culture period on birth weight among singletons born after vitrified-warmed embryo transfer. Methods: A retrospective cohort study was performed among 12400 women who gave birth to 1015, 1027, 687, and 9671 singletons after single blastocyst transfer, single cleavage-stage embryo transfer, double blastocyst transfer, and double cleavage-stage embryo transfer, respectively. Results: The unadjusted birth weight of singletons born after vitrified blastocyst transfer were heavier than those born after cleavage-stage transfer (β=30.28, SE=13.17, P=0.022), as were the adjusted birth weights (β=0.09, SE=0.03, P=0.007). In addition, there was a 37% increased odd of having an infant with high birth weight after vitrified blastocyst transfer compared with vitrified cleavage stage transfer (OR=1.37, 95% CI:1.07-1.77). Conclusion: The unadjusted and adjusted birth weight and odds of having an infant with high birth weight significantly increased after blastocyst transfer compared with cleavage-stage embryo transfer in vitrified-warmed cycles.
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