Table 2 Comparison of ovarian stimulation parameters between two treatment protocols before and after propensity score matching
Variable | Before matching | After matching | ||||
|---|---|---|---|---|---|---|
OCs (n = 401) | non-OCs (n = 1821) | P value | OCs (n = 369) | non-OCs (n = 879) | P value | |
Total Gn dose (IU) | 2695.92± 939.72 | 2674.20± 1082.84 | 0.927 | 2762.84± 931.77 | 2820.93± 1025.72 | 0.590 |
Duration of Gn (days) | 9.66 ± 2.09 | 9.40 ± 2.53 | 0.053 | 9.64 ± 2.13 | 9.89 ± 2.30 | 0.077 |
E2 levels at the day of hCG (pg/ml) | 2282.13± 1097.80 | 1618.97± 1173.90 | 0.* | 2250.24± 1094.11 | 1878.22± 1199.37 | 0.* |
LH levels at the day of hCG (IU/L) | 2.33 ± 2.69 | 3.56 ± 4.91 | 0.* | 2.42 ± 2.79 | 3.06 ± 3.61 | 0.* |
P levels at the day of hCG (mg/ml) | 0.90 ± 0.43 | 0.85 ± 0.47 | 0.017* | 0.91 ± 0.43 | 0.90 ± 0.48 | 0.659 |
Follicles ≥ 14 mm at day of hCG (n) | 6.76 ± 3.73 | 4.73 ± 3.32 | 0.* | 6.52 ± 3.67 | 5.59 ± 3.29 | 0.* |
Endometrial thickness (mm) | 10.31 ± 2.38 | 10.42 ± 2.69 | 0.775 | 10.25 ± 2.37 | 10.85 ± 2.68 | 0.* |
No. of oocytes retrieved (n) | 5.85 ± 2.26 | 4.45 ± 2.69 | 0.* | 5.77 ± 2.25 | 5.06 ± 2.50 | 0.001* |
No. of 2PN (n) | 3.64 ± 2.05 | 2.70 ± 2.13 | 0.* | 3.52 ± 2.02 | 3.00 ± 2.07 | 0.* |
Available embryos (n) | 3.83 ± 2.85 | 2.04 ± 2.17 | 0.* | 3.75 ± 2.04 | 3.21 ± 2.10 | 0.* |
Good quality embryos (n) | 1.65 ± 1.48 | 1.21 ± 1.39 | 0.* | 1.60 ± 1.45 | 1.34 ± 1.39 | 0.* |
OSI | 2.53 ± 1.56 | 1.79 ± 1.31 | 0.* | 2.40 ± 1.49 | 1.97 ± 1.28 | 0.* |