Table 2.
The comparison of ovulation induction outcomes in PCOS patients of different ages.
| PCOS | Tubal factor | |||||
|---|---|---|---|---|---|---|
| Group A age, 20–28 | Group B age, 29–35 | Group C age, ≥36 | Group a age, 20–28 | Group b age, 29–35 | Group c age, ≥36 | |
| Subjects (n) | 81 | 350 | 101 | 114 | 753 | 525 |
| E2 level on the day of hCG injection (pg/ml) | 3487.9 ± 2038.1 | 3103.9 ± 1879.1 | 2472.5 ± 1686.6∗ | 3156.8 ± 2123.0 | 2945.3 ± 1851.7 | 2441.4 ± 1829.1# |
| Maximum follicular diameter (mm) | 22.6 ± 1.8 | 22.5 ± 2.1∗ | 22.9 ± 1.5∗ | 22.5 ± 1.6 | 22.3 ± 1.7 | 21.8 ± 1.5# |
| Number of follicles with d ≥ 20 mm | 3.6 ± 1.9 | 3.4 ± 1.7∗ | 3.7 ± 2.0∗ | 3.2 ± 1.6 | 2.9 ± 1.5 | 2.3 ± 1.4# |
| Number of retrieved oocytes | 7.9 ± 3.7 | 8.3 ± 3.8∗ | 7.5 ± 3.3∗ | 8.4 ± 3.2 | 7.6 ± 3.4 | 4.8 ± 2.9# |
| Number of 2PN zygotes | 6.8 ± 3.5 | 6.8 ± 3.2∗ | 6.2 ± 3.1∗ | 6.8 ± 2.8 | 6.1 ± 3.0 | 4.8 ± 2.9# |
| Number of embryos | 5.5 ± 2.8 | 5.5 ± 2.8 | 5.1 ± 2.8∗ | 6.2 ± 2.9 | 5.3 ± 2.9 | 4.1 ± 2.5# |
∗ p < 0.05 compared with control at the same age. #p < 0.05 compared within the PCOS group and control group.