Table 2.
The cycle characteristics of controlled ovarian stimulation of different weight patients.
| Characteristic | Normal weight (n = 418) | Overweight (n = 173) | Underweight (n = 45) | P |
|---|---|---|---|---|
| Gn dose (IU) | 2458 ± 897 | 2451 ± 810 | 2695 ± 871 | 0.207 |
| Gn duration (days) | 9.8 ± 2.9 | 9.8 ± 2.8 | 9.9 ± 3.2 | 0.991 |
| >10 mm follicles on HCG day (n) | 6.6 ± 5.1 | 6.9 ± 4.8 | 7.2 ± 4.1 | 0.573 |
| >14 mm follicles on HCG day (n) | 3.9 ± 2.8 | 4.0 ± 2.5 | 4.0 ± 2.2 | 0.947 |
| E2 concentration on HCG day (pg/ml) | 1452 ± 1026 | 1611 ± 1031 | 1409 ± 946 | 0.196 |
| Endometrium thickness on hCG day (mm) | 7.8 ± 1.8 | 7.7 ± 1.8 | 8.3 ± 2.4 | 0.139 |
| Oocytes retrieved (n) | 4.3 ± 3.5 | 4.6 ± 3.3 | 4.6 ± 2.6 | 0.622 |
| Fertilized eggs (n) | 2.9 ± 2.7 | 3.2 ± 2.8 | 3.0 ± 2.0 | 0.430 |
| Cleaved embryos (n) | 2.8 ± 2.6 | 3.1 ± 2.7 | 2.9 ± 2.0 | 0.436 |
| Fertilization rate (%) | 67.7 | 70.3 | 66.8 | 0.008 |
| Cleavage rate (%) | 96.8 | 97.0 | 95.6 | 0.724 |
| 2PN fertilization rate (%) | 57.7 | 58.7 | 54.6 | 0.567 |
| 2PN cleavage rate (%) | 83.8 | 82.5 | 80.3 | 0.517 |
| Cancellation rate of the cycle (%) | 21.8 | 17.3 | 20.0 | 0.477 |
| Top quality of embryos of day 3 (n) | 1.7 ± 1.7 | 1.8 ± 1.9 | 1.7 ± 1.4 | 0.932 |