Table 1.
Patient characteristics.
| Number | 1060 |
| Age(y) | 36.3 ± 4.4 |
| Gravity | 0.48 ± 0.8 |
| Parity | 0.16 ± 0.4 |
| Miscarriage | 0.32 ± 0.6 |
| BMI (kg/m2) | 21.6 ± 5.4 |
| Type of infertility | |
| Uterine factor | 14.9% (158) |
| Fallopian tube factor | 24.0% (255) |
| Ovulation factor | 15.8% (164) |
| PCOS | 6.1% (65) |
| Cervical factor | 9.5% (101) |
| Endometriosis | 14.8% (157) |
| Male factor | 32.0% (339) |
| unexplained | 29.8% (316) |
| Life style | |
| Smoking | 2.3% (24) |
| Alcohol | 3.1% (33) |
| Exercise | 6.4% (68) |
| Basal FSH (IU/mL) | 8.0 ± 3.1 |
| Basal LH(IU/mL) | 5.7 ± 2.6 |
| Basal E2 (pg/mL) | 43.5 ± 44.5 |
| AMH (ng/L) | 3.12 ± 3.0 |
| 25(OH) vitamin D (ng/mL) | 14.5 ± 5.8 |
| Serum Homocysteine level (μmol/L) | 8.6 ± 2.3 |
| Previous No. of IVF/ICSI failure | 1.9 ± 1.5 |
| Previous No. of ET failure | 0.6 ± 1.1 |
| Total gonadotropin dose used (IU/L) | 1647.2 ± 619.8 |
| Endometrial thickness on hCG day (mm) | 10.1 ± 2.8 |
| E2 level on hCG day(pmol/L) | 2042.6 ± 1386.2 |
| Fertilization | |
| IVF | 43.9% (465) |
| ICSI | 42.7% (453) |
| Split | 10.1% (107) |
| Ovulation regimens | |
| GnRH-agonist long protocol | 1.0% (11) |
| GnRH-agonist short protocol | 0.6% (7) |
| GnRH-antagonist | 72.2% (765) |
| Moderate stimulation | 8.5% (90) |
| PPOS | 17.6% (187) |
| Total number of oocytes retrieved | 7.82 ± 5.9 |
| No. of M-II oocytes | 6.1 ± 4.8 |
| MII rate | 81.2% |
| Fertilization rate | 74.0% |
| No. of high-quality blastocyst | 1.8 ± 2.3 |
| High quality blastocyst rate | 35.8% |