Table 1. Patients’ basic characteristics and stimulation variables of the two groups.
| Group 1 (n = 265) | Group 2 (n = 132) | P-value | |
|---|---|---|---|
| Patient characteristics | |||
| Classifications of infertility | 0.915 | ||
| Primary infertility %(n) | 44.15 (117/265) | 43.18 (57/132) | 0.855 |
| Secondary infertility %(n) | 55.85 (148/265) | 56.82 (75/132) | 0.855 |
| Age (years) | 30.58 ± 3.57 | 31.14 ± 4.1858 | 0.134 |
| BMI (Kg/m2) | 21.28 ± 2.56 | 21.79 ± 2.65 | 0.063 |
| Infertility durations (years) | 3.58 ± 2.44 | 3.80 ± 2.62 | 0.998 |
| IVF testifies | |||
| Female infertility %(n) | 48.68 (129/265) | 43.94 (58/132) | 0.373 |
| Polycystic ovary syndrome %(n) | 8.30 (22/265) | 3.03 (4/132) | 0.052 |
| Endometriosis %(n) | 10.18 (27/265) | 4.55 (6/132) | 0.056 |
| Male infertility %(n) | 16.98 (45/265) | 14.39 (19/132) | 0.509 |
| Couple reasons %(n) | 28.67 (76/265) | 39.39 (42/132) | 0.519 |
| Unkown reasons %(n) | 5.67 (15/265) | 2.28 (3/132) | 0.126 |
| Basic hormones on the day 3 | |||
| D3 LH (IU/L) | 4.24 ± 2.48 | 4.18 ± 1.92 | 0.373 |
| D3 FSH (IU/L) | 5.90 ± 1.68 | 6.22 ± 1.78 | 0.085 |
| D3 E2 (pg/mL) | 44.56 ± 14.12 | 45.80 ± 16.01 | 0.432 |
| On the commencing day | |||
| LH level (IU/L) | 0.49 ± 0.24 | 0.46 ± 0.33 | 0.082 |
| E2 level (pg/mL) | 29.26 ± 12.19 | 26.90 ± 9.91 | 0.121 |
| P4 level (ng/mL) | 0.35 ± 0.17 | 0.42 ± 0.22 | 0.373 |
| Antral follicular count (n) | 14.68 ± 5.57 | 12.61 ± 5.64 | 0.001 |
| On the day of hCG | |||
| LH level (IU/L) | 0.63 ± 0.43 | 0.60 ± 0.54 | 0.583 |
| E2 level (pg/mL) | 1,994.03 ± 1,220.48 | 2,046.86 ± 1,128.08 | 0.756 |
| P4 level (ng/mL) | 0.54 ± 0.32 | 0.77 ± 1.84 | 0.536 |
| Endometrial thickness (mm) | 11.37 ± 2.03 | 11.32 ± 2.26 | 0.264 |
| Initial dose of FSH (IU/day) | 166.09 ± 53.81 | 168.56 ± 50.01 | 0.530 |
| Days of stimulation (days) | 11.51 ± 3.55 | 12.41 ± 3.01 | 0.282 |
| Total dose of FSH (IU) | 2,243.97 ± 1,070.13 | 2,440.08 ± 1,039.48 | 0.156 |