| Group A | Group B | P-value |
No. of oocytes | 387 | 424 | ? |
Normal fertilization (%) | 67.2 (260/387) | 69.1 (293/424) | 0.558 |
Polyspermy (%) | 10.9 (42/387) | 5.7 (24/424) | 0.007 |
1PN (%) | 1.3 (5/387) | 2.4 (10/424) | 0.260 |
High-quality embryo (%) | 42.6 (112/263) | 50.8 (152/299) | 0.051 |
Available embryo (%) | 66.2 (174/263) | 71.6 (214/299) | 0.166 |
No. of surplus embryos | 151 | 147 | ? |
Blastocyst formation (%) | 16.6 (25/151) | 25.9 (38/147) | 0.049 |
High-quality blastocyst formation (%) | 4.6 (7/151) | 11.6 (17/147) | 0.028 |