Table 4.
Comparison of pregnancy outcomes between groups divided by serum estrogen levels on the blastocyst transfer day [% (n/n)].
| Group | Clinical pregnancy rate | Implantation rate | Multiple-pregnancy rate | Abortion rate | Live birth rate |
|---|---|---|---|---|---|
| B1 | 76.1 (134/176) | 58.8 (207/352) | 41.5 (73/176) | 7.0 (12/134) | 69.3 (122/176) |
| B2 | 70.2 (125/178) | 53.4 (190/356) | 37.1 (66/178) | 8.1 (17/125) | 60.7 (108/178) |
| B3 | 75.0 (132/176) | 57.1 (201/352) | 40.9 (72/176) | 11.8 (18/132) | 63.6 (112/176) |
| B4 | 72.5 (129/178) | 55.6 (198/356) | 39.9 (71/178) | 4.5 (13/129) | 64.6 (115/178) |
| χ2 | 1.905 | 2.295 | 0.847 | 1.900 | 2.982 |
| P | 0.592 | 0.514 | 0.838 | 0.593 | 0.394 |