TY - JOUR AU - Mohammadi Yeganeh, Ladan AB - Purpose This study aimed to compare the clinical outcomes in different endometrial preparation methods prior to frozen embryo transfer (FET) in women with normal menstrual cycles. Methods A total of 471 eligible patients were randomly allocated into four groups of endometrial preparation prior to FET: natural cycle with spontaneous ovulation (n = 120), natural cycle with human chorionic gonadotropin (hCG) for ovulation induction (n = 117), hormone replacement cycle (HRC) (n = 113) and HRC with pre-treatment with GnRH-a (n = 121). Natu- ral cycle with hCG also received hCG in luteal phase. The primary outcome was live birth rate. The secondary outcomes included implantation, biochemical and clinical pregnancy, ongoing pregnancy, and late miscarriage rates. Data analysis included t test, ANOVA and χ . Results There were no statistically significant differences in the mean age (p = 0.31), duration (p = 0.43) and cause of infer- tility (p = 0.77) and the number (p = 0.33) and quality (p = 0.21) of embryos transferred between the groups. No significant differences regarding the implantation rates per embryo transfer (p = 0.97) and biochemical pregnancy rates (p = 0.90) were observed between the groups. The rates of clinical pregnancy were 34.2%, 32.5%, 31% and TI - Live birth rates after different endometrial preparation methods in frozen cleavage-stage embryo transfer cycles: a randomized controlled trial JF - Archives of Gynecology and Obstetrics DO - 10.1007/s00404-019-05062-7 DA - 2019-02-01 UR - https://www.deepdyve.com/lp/springer-journals/live-birth-rates-after-different-endometrial-preparation-methods-in-k73gfX7qaB SP - 1185 EP - 1191 VL - 299 IS - 4 DP - DeepDyve ER -