Table 4.
Fertilization | GnRH antagonist | GnRH agonist | P value |
ICSI frequency (%) | 74.8 (74/99) |
68.8 (66/96) |
0.22 |
normal fertilization (all) (%) | 55.9 (363/649) |
60.4 (489/810) |
0.09 |
normal fertilization (ICSI) (%) | 57.7 (225/390) |
59.9 (284/474) |
0.51 |
normal fertilization (IVF) (%) | 53.3 (138/259) |
61.0 (205/336) |
0.06 |
number of fertilized oocytes/cycle (mean + SD) |
3.7 (± 3.0) | 5.1 (± 3.4) | < 0.01 |
normal pronuclear morphology (%) | 49.3 (176/357) |
58.0 (280/483) |
< 0.01 |