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