Table 4 Reproductive outcomes of first-cycle IVF-ET by subtype of unification defecations
|  | Unicornuate uterus (N = 431) | Bicornuate uterus (N = 23) | Uterus didelphys (N = 74) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Â | Controls | P value | Â | Controls | P value | Â | Controls | P value | |
Clinical pregnancy | 139 (32.3%) | 212 (49.2%) |  < 0.001 | 12 (52.2%) | 13 (56.5%) | 0.767 | 30 (40.5%) | 43 (58.1%) | 0.033 |
Ectopic pregnancy | 4 (2.9%) | 5 (2.4%) | 0.765 | 0 (0.0%) | 0 (0.0%) | – | 1 (3.3%) | 1 (2.3%) | 1.000 |
First-trimester pregnancy loss | 26 (18.7%) | 12 (5.7%) |  < 0.001 | 2 (16.7%) | 2 (15.4%) | 1.000 | 8 (26.7%) | 2 (4.7%) | 0.013 |
Second-trimester pregnancy loss | 6 (4.3%) | 9 (4.2%) | 0.974 | 0 (0.0%) | 1 (7.7%) | 1.000 | 0 (0.0%) | 1 (2.3%) | 1.000 |
Live birth | 101 (23.4%) | 180 (41.8%) |  < 0.001 | 9 (40.9%) | 10 (43.5%) | 0.862 | 21 (28.4%) | 39 (52.7%) | 0.003 |
Preterm birth | 19 (18.8%) | 31 (17.8%) | 0.722 | 1 (11.1%) | 0 (0%) | 0.474 | 5 (23.8%) | 4 (10.3%) | 0.306 |