| Male age (years) |
23 to 78 |
| Female age (years) |
21 to 55 |
| Duration of infertility (years) |
1 to 14 |
| Number of IVF cycles performed |
0 to 16 |
| Number of oocytes retrieved |
0 to 52 |
| The Number of Embryos Transferred |
1 to 4 |
| The Total Number of Frozen Embryos |
0 to 36 |
| Cause of infertility |
Tubal factor, ovary factor, endometriosis, uterine factor (myoma adenomyosis, uterine synechia), others (other female factors), male factor, either two factors, unexplained |
| Fertilization method |
IVF/ET (in vitro fertilization/embryo transfer), ZIFT/TET (zygote intrafallopian transfer/tubal embryo transfer) |
| Micromanipulation technique |
ICSI (intracytoplasmic sperm injection), assisted hatching, ICSI and assisted hatching, PGT (preimplantation genetic testing), no use, others |
| Source of sperm and oocytes |
Without donation, oocyte donation, sperm donation |
| The use of fresh/freeze-thaw |
Fresh, freeze-thaw |
| Ovarian hyperstimulation syndrome |
None, mild, moderate, severe |
| Ovarian stimulation protocol |
Natural cycle (including frozen-embryo transfer cycle), oral stimulation drug, short protocol, long protocol, ultra-long protocol, antagonist protocol, others |
