Table 1 Characteristic of patients and blastocyst morphology (N = 1154)
Characteristic | Mean ± SD / N / % |
|---|---|
Female age(years) | 31.39 ± 5.48 |
No. of early cycles | 2.65 ± 1.06 |
Duration of infertility (years) | 5.68 ± 3.13 |
Endometrial thickness (mm) | 9.42 ± 1.65 |
Expansion of blastocyst | 3.59 ± 0.75 |
degree 1 | 21(1.33%) |
degree 2 | 87(5.50%) |
degree 3 | 501(31.65%) |
degree 4 | 907(57.30%) |
degree 5 | 52(3.28%) |
degree 6 | 15(0.95%) |
Cycles of clinical pregnancy | 434(37.6%) |
Cycles of non-pregnancy | 720(62.4%) |
Cycles with single blastocyst transfer | 725(62.8%) |
Cycles with two blastocysts transfer | 429(37.2%) |
Total No. of blastocysts transferred | 1583 |
Cycles with one embryo sac | 300 |
Cycles with two embryo sacs | 134 |
Total No. of blastocyst implanted | 568 |
Implantation rate | 35.88% |
Type of infertility | |
Primary infertility | 518(44.9%) |
Secondary infertility | 636(55.1%) |
Protocol for endometrial preparation | |
GnRH-a + HRT-FET | 82(7.1%) |
HRT-FET | 627(54.3%) |
OI-FET | 51(4.4%) |
NC-FET | 394(34.1) |