| Group A | Group B | P-value |
Mean embryos per transfer | 1.96 (49/25) | 1.94 (60/31) | 0.946 |
Clinical pregnancies (%) | 64 (16/25) | 61.3 (19/31) | 0.835 |
Implantation (%) | 40.8 (20/49) | 45.0 (27/60) | 0.661 |
Twin/singleton pregnancies | 4/12 | 8/10 | 0.236 |
Ectopic pregnancies | 0 | 1 | ? |
Births (%) | 48 (12/25) | 48.4 (15/31) | 0.977 |