Table 4 Clinical outcomes between the oocyte retrieval difficulty group and the control group
Difficulty group | control | P Value | |
|---|---|---|---|
Embryo transfer cycles | 69 | 980 | |
Fresh embryo transfer cycles/oocyte retrieval cycles | 69/133 | 980/1581 | 0.026 |
(%) | (51.88%) | (61.99%) | |
Cycles having extra embryo cryopreservation | 53/69 | 941/980 | 0.00 |
(%) | (76.81%) | (96.02%) | |
Mean embryos transferred | 1.80 ± 0.41 | 1.82 ± 0.38 | |
Endometrial thickness(mm) in ET day | 9.80 ± 1.70 | 9.81 ± 1.53 | 0.959 |
Embryo implantation rate | 66/124 (53.2%) | 1046/1782(58.7%) | 0232 |
Pregnancy rate | 52/69 (75.4%) | 715/980 (73.0%) | 0.663 |
Spontaneous miscarriages | 3 | 29 | |
(% per pregnancy, before 12 weeks) | (5.8) | (4.1) | 0.551 |
Spontaneous miscarriages | 3 | 16 | |
(% per pregnancy, after 12 weeks) | (5.8) | (2.2) | 0.114 |
live birth rate | 46/69(66.7%) | 670/980(68.4%) | 0.769 |