Table 2.
Ovarian stimulation characteristics and embryological outcomes.
| Item | Vitamin D < 20ng/mL | Vitamin D ≥ 20ng/mL | P |
|---|---|---|---|
| (n=367) (59.9%) | (n=246)(61.1%) | ||
| Gn dose(IU) | 2565.48 ± 1345.59 | 2465 ± 1136.33 | 0.34 |
| E2 on the day of hCG(pg/mL) | 1776.43 ± 912.30 | 1750.57 ± 774.25 | 0.73 |
| Endometrial thickness on the day of hCG(mm) | 10.74 ± 2.23 | 10.87 ± 2.49 | 0.52 |
| Number of oocytes retrieved, mean (SD) | 10.18 ± 4.27 | 10.42 ± 4.22 | 0.48 |
| Number of MII oocytes, mean (SD) | 8.7 ± 3.93 | 8.9 ± 3.84 | 0.48 |
| Number of fertilization embryos (SD) | 6.07 ± 3.22 | 6.22 ± 3.07 | 0.54 |
| Number available embryos (SD) | 4.97 ± 2.90 | 5.16 ± 2.83 | 0.42 |
| Number of high-quality embryos D3 (SD) | 2.71 ± 2.33 | 2.72 ± 2.12 | 0.92 |
| Number of blastocyst formation | 2.96 ± 3.17 | 2.72 ± 2.68 | 0.31 |
Gn, gonadotropin; HCG, human chorionic gonadotropin; P ≤ 0.05 was considered significant.