Table 2.
Clinical data and pregnancy outcomes in different protocols after Propensity score matching.
| Variables | GnRH-a (n = 1,412) | GnRH-ant (n = 1,412) | P |
|---|---|---|---|
| Age (y) | 31.00 (7.00) | 31.00 (7.00) | >0.05 |
| Infertility duration (mo) | 36.00 (48.00) | 36.00 (45.00) | >0.05 |
| Number of gravidities | 1.00 (1.00) | 1.00 (1.00) | >0.05 |
| BMI (kg/m2) | 23.23 (4.71) | 23.23 (4.59) | >0.05 |
| bFSH (mIU/ml) | 7.04 (2.34) | 7.62 (3.36) | <0.05 |
| bE2 (pg/ml) | 37.00 (29.00) | 39.00 (28.31) | <0.05 |
| bP (ng/ml) | 0.64 (0.54) | 0.64 (0.50) | >0.05 |
| bLH (mIU/ml) | 3.97 (2.45) | 4.10 (2.75) | >0.05 |
| bT (ng/ml) | 0.40 (0.27) | 0.42 (0.26) | >0.05 |
| bAMH (ng/ml) | 2.65 (2.32) | 1.80 (2.23) | <0.05 |
| Total dose of Gn (IU) | 2400 (975) | 2400 (1050) | <0.05 |
| EMT (mm) | 11.00 (2.00) | 10.00 (2.00) | <0.05 |
| Endometrial echo type | |||
| A | 63.0% (889/1412) | 65.8% (929/1412) | >0.05 |
| B | 35.4% (500/1412) | 32.5% (459/1412) | >0.05 |
| C | 1.6% (23/1412) | 1.7% (24/1412) | >0.05 |
| Number of embryos transferred | |||
| 1 | 7.58% (107/1412) | 13.03% (184/1412) | <0.05 |
| 2 | 90.93% (1284/1412) | 81.59% (1152/1412) | <0.05 |
| 3 | 1.49% (21/1412) | 5.38% (76/1412) | <0.05 |
| Clinical pregnancy rate | 62.89% (888/1412) | 65.23% (921/1412) | >0.05 |
| Live birth rate | 54.11% (764/1412) | 54.25% (766/1412) | >0.05 |
| Miscarriage rate | 13.96% (124/888) | 16.83% (155/921) | >0.05 |
GnRH-a, gonadotropin-releasing hormone agonist; GnRH-ant, gonadotropin-releasing hormone antagonist; mo, month; BMI, body mass index; bFSH, basal follicle-stimulating hormone; bE2, baseline estradiol; bP, baseline progesterone; bLH, baseline luteinizing hormone; bT, baseline testosterone; bAMH, baseline anti-Mullerian hormone; EMT, Endometrial thickness.