Table 1.
Background data of SBT and DBT.
| SBT (n = 84) | DBT (n = 71) | P value | |
|---|---|---|---|
| Age | 36.8 (35.7, 38.6) | 37.6 (35.9, 40.1) | 0.019∗ |
| Infertility duration (years) | 3.9 ± 3.4 | 3.5 ± 3.1 | 0.472 |
| BMI (kg/m2) | 21.9 ± 3.0 | 21.8 ± 3.0 | 0.773 |
| AFC | 12.9 ± 4.9 | 12.0 ± 4.3 | 0.201 |
| Fertilization method (%) | |||
| IVF | 80.0 (67/84) | 70.4 (50/71) | 0.125 |
| ICSI | 17.9 (15/84) | 21.1 (15/71) | 0.478 |
| IVF+ICSI | 2.4 (2/84) | 8.5 (6/71) | 0.092 |
| AMH (ng/mL) | 3.0 ± 1.9 | 3.6 ± 4.1 | 0.568 |
| Baseline gonadal hormone | |||
| LH (IU/L) | 4.3 ± 2.0 | 3.7 ± 1.6 | 0.060 |
| FSH (IU/L) | 6.9 ± 2.3 | 6.9 ± 1.8 | 0.965 |
| E2 (ng/mL) | 61.9 ± 49.3 | 58.3 ± 44.0 | 0.665 |
| P (nmol/L) | 0.52 (0.37, 0.73) | 0.51 (0.4, 0.68) | 0.402 |
∗ P < 0.05.