Table 4.
Reproductive outcomes per FET cycle
| Unicornuate uterus | Control | OR (95% CI) | p-value | |
|---|---|---|---|---|
| n = 342 women | n = 1026 women | |||
| Cleavage day-3 FET cycles, n | 93 | 214 | ||
| Embryos survival rate, % (n) | 90.2% (203/225) | 91.9% (475/517) | p = 0.478 | |
| Embryos per transfer, mean ± SD | 2.18 ± 0.59 | 2.21 ± 0.68 | p = 0.743 | |
| Implantation rate, % (n) | 16.7% (34/203) | 20.4% (97/475) | 0.820 (0.575–1.169) | p = 0.267 |
| Clinical pregnancy, % (n) | 32.3% (30/93) | 35.5% (76/214) | 0.908 (0.643–1.283) | p = 0.581 |
| Miscarriage rate, % (n) | 6.7% (2/30) | 9.2% (7/76) | 0.724 (0.159–3.288) | p = 0.672 |
| Live birth rate, % (n) | 30.1% (28/93) | 32.2% (69/214) | 0.934 (0.648–1.346) | p = 0.712 |
| Multiple live birth rate, % (n) | 4.3% (4/93) | 9.8% (21/214) | 0.438 (0.155–1.241) | p = 0.105 |
| Blastocyst FET cycles, n | 125 | 207 | ||
| Embryos survival rate, % (n) | 97.9% (141/144) | 98.7% (234/237) | p = 0.677 | |
| Embryos per transfer, mean ± SD | 1.13 ± 0.34 | 1.13 ± 0.34 | p = 0.949 | |
| Implantation rate, % (n) | 34.0% (48/141) | 36.8% (86/234) | 0.926 (0.697–1.231) | p = 0.596 |
| Clinical pregnancy, % (n) | 36.8% (46/125) | 40.1% (83/207) | 0.918 (0.619–1.219) | p = 0.550 |
| Miscarriage rate, % (n) | 21.7% (10/46) | 10.8% (9/83) | 2.005 (0.878–4.576) | p = 0.094 |
| Live birth rate, % (n) | 28.8% (36/125) | 35.7% (74/207) | 0.806 (0.579–1.121) | p = 0.192 |
| Multiple live birth rate, % (n) | 1.6% (2/125) | 1.4% (3/207) | 1.104 (0.187–6.516) | p = 0.913 |
FET frozen embryo transfer, CI confidence interval, OR odds ratio, SD standard deviation