| Table 1. Clinical and oocyte characteristics of the study group | |
| Clinical and oocyte characteristics | Mean (SD)* |
| Maternal age (years) | 35.6 (4.2) |
| Infertility time (years) | 5.6 (5.1) |
| Menarche (years) | 12.0 (1.5) |
| Days of induction (N) | 10.3 (1.5) |
| Endometrial thickness (mm) | 10.2 (2.1) |
| Days of sexual abstinence before semen collection | 3.3 (1.9) |
| Total oocytes collected % (N) | 100% (1907) |
| MII)ϯ | 67.7% (1291) |
| MI)ŧ total | 18.7% (358) |
| [Arrested MI)ŧ oocytes after 4 hours of incubation] | [8.0% (153)] |
| [Rescued MI-MII§ oocytes after 4 hours of incubation] | [10.7% (205)] |
| [Rescue maturation rate] | [57.2%] |
| Prophase I | 9.1% (175) |
| Atresic | 4.3% (83) |
* SD: standard deviation
ϯ MII: metaphase II
ŧ MI: metaphase II
§ MI-MII: matured from MI to MI after 4 hours of incubation