Storage Time of Cryopreserved Embryos and Pregnancy Outcomes: A Dose-Response Meta-Analysis.

Geburtshilfe Frauenheilkd · 2021 · PMC7938942 · PMID 33692592

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a decreasing trendno p-value reported

It is worth mentioning that the implantation rate (OR 0.84, 95% CI [0.57, 1.24]), clinical pregnancy rate (OR 0.91, 95% CI [0.80, 1.03]) and live birth rate (OR 0.90, 95% CI [0.79, 1.03]) for long storage time groups all showed a decreasing trend for vitrification.

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