ArticleEuropean journal of obstetrics & gynecology and reproductive biology: X2026
Influencing factors of live birth in vitrified oocyte donation cycles: A retrospective cohort study.
Article in European journal of obstetrics & gynecology and reproductive biology: X, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: To evaluate the live birth rate (LBR) of assisted reproductive technology (ART) treatment using vitrified donated oocytes in China and to investigate the influencing factors on live birth outcomes. Methods: This retrospective cohort included 377 infertility women who underwent ART with vitrified donated oocytes at a large reproductive center in China between January, 2015 and June, 2024. Among them, 369 women underwent embryo transfer. The primary outcome was LBR after the first transfer. The multivariable Logistic regression model were employed to estimate the influencing factors of live birth outcomes. Results: The LBR of the first transfer was 51.5% (190/369). Advanced recipient age (adjusted odds ratio [aOR]: 0.92, 95% CI: 0.85-0.98, Conclusions: Advanced recipient age and a history of poor oocyte/embryo quality are significant factors reducing LBRs in ART treatment with vitrified donated oocytes. Long-term oocyte cryopreservation is safe, and rational batch oocyte allocation is recommended.
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