Demographic and clinical data of the fresh IVF cycles
Between January 2019 and January 2020, a total of 245 women were eligible and randomly allocated to the hCG treatment group (n = 124) or the control group (n = 121) (Flowchart of the study cohort.Demographic and clinical data of the fresh IVF cycles.KW, Kruskal–Wallis test; K, Pearson’s chi-square test; BMI, body mass index; AFC, antral follicle count; FSH, follicle-stimulating hormone; IVF, in-vitro fertilization; hCG, human chorionic gonadotropin; ICSI, Intracytoplasmic sperm injection; Data presented as number (percentage) or median (25th–75th centiles). Both groups were found no statistical significance.In terms of the characteristics of FET cycles, there were more blastocyst stage embryos transferred and more single embryo transfer cycles in the control group as compared to the treatment group (88.43% versus 76.61% and 86.78% versus 74.19%, Characteristics of FET cycles.Significant difference values are in bold.AC, artificial cycle; GnRH-a, gonadotropin-releasing hormone-agonist;Em, endometrial thickness on the day progesterone commenced.