Data Collection
Age, BMI, years of infertility, mean number of previous fresh and frozen
embryos transferred per patient, mean number of oocytes retrieved or
donated, mean number of MII oocytes inseminated, fertilization rate per
inseminated oocyte, mean number of
embryos available per oocyte pick-up, mean endometrial
thickness, mean number of days for
endometrial preparation, number of total ET, and number of frozen
embryos transferred were recorded.
We determined the benefit of testing in terms of (1) mean implantation
rate per transferred embryo defined as the number of gestational sacs
divided by the number of embryos transferred, and (2) ongoing pregnancy
rate per transferred embryo defined as positive pregnancy beyond 12
weeks gestation confirmed by ultrasound with fetal heart activity
divided by the number of embryos transferred.