| Abstinence period | Oocytes submitted to ICSI | Fertilized oocytes | Fertilization rate |
|---|---|---|---|
| G1(<24 hours) | 1290 | 948 | 73.4% |
| G1(<24 hours) | 1588 | 1119 | 70.4% |
| G3 (36-48 hours) | 697 | 462 | 66.2% |
| G4 (48-60 hours) | 161 | 110 | 68.3% |
| G5 (60-72 hours) | 151 | 103 | 68.2% |
| G6 (72-96 hours) | 160 | 95 | 59.3% |