Obstetric outcomes following artificial and natural cycle frozen embryo transfer in patients with and without endometriosis: a national cohort study.

BMC Pregnancy Childbirth · 2025 · PMC12505903 · PMID 41063059

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did not reach statistical significanceno p-value reported

Although the odds ratio for threatened abortion appeared higher in the endometriosis group (aOR 2.09) than in the non-endometriosis group (aOR 1.83) after propensity score matching, the interaction test did not reach statistical significance.

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