Table 3 Reproductive outcomes at the first embryo transfer
Cycles | Fresh embryo transfer cycles | Frozen-thawed embryo transfer cycles | ||||
|---|---|---|---|---|---|---|
Control group n = 113 | P + A group n = 74 | P value | Control group n = 83 | P + A group n = 76 | P value | |
Embryo stage, n (%) Cleavage stage | 108 (95.6%) | 72 (97.3%) | 0.544 | 73 (88.0%) | 71 (93.4%) | 0.239 |
Blastocyst stage | 5 (4.4%) | 2 (2.7%) | 10 (12.0%) | 5 (6.6%) | ||
Number of embryos transferred | 1.88 ± 0.33 | 1.93 ± 0.25 | 0.214 | 1.81 ± 0.40 | 1.84 ± 0.37 | 0.565 |
Endometrial thickness on embryo transfer day (mm) | / | / | / | 9.1 (8.5,11.0) | 9.1 (8.5,11.0) | 0.984 |
Implantation rate (%) | 40.1 (85/212) | 44.8 (64/143) | 0.355 | 42.0 (63/150) | 46.4 (65/140) | 0.448 |
Implantation rate of cleavage-stage embryos (%) | 40.2 (82/204) | 44.7 (63/141) | 0.407 | 39.7 (54/136) | 45.5 (60/132) | 0.341 |
Implantation rate of blastocyst-stage embryos (%) | 37.5 (3/8) | 50.0 (1/2) | / | 60.0 (9/14) | 62.5 (5/8) | / |
Pregnancy rate (%) | 63.7 (72/113) | 64.9 (48/74) | 0.873 | 65.1 (54/83) | 65.8 (50/76) | 0.923 |
Clinical pregnancy rate (%) | 57.5 (65/113) | 63.5 (47/74) | 0.414 | 57.8 (48/83) | 61.8 (47/76) | 0.606 |
Miscarriage rate (%) | 13.8 (9/65) | 25.5 (12/47) | 0.118 | 18.8 (9/48) | 27.7 (13/47) | 0.303 |
Neonatal mortality rate (%) | 0 (0/113) | 0 (0/74) | Â | 0 (0/83) | 0 (0/76) | Â |
Live birth rate (%) | 49.6 (56/113) | 47.3 (35/74) | 0.762 | 47.0 (39/83) | 44.7 (34/76) | 0.776 |