| Table 5. Rate of oocytes collected in each maturation stage according to the female age group | ||||
| Maturation stage of oocyte | Oocyte maturation rate (%) | |||
| ≤ 34 years | 35-39 years | ≥ 40 years | p-value* | |
| MII | 78.2% | 76.0% | 77.6% | 0.652 |
| Rescued MI-MII | 11.0% | 13.7% | 16.4% | 0.428 |
| Arrested MI | 9.2% | 10.3% | 6.6% | 0.390 |
* Kendall correlation