Table 3 demographic data of potential predictors in pregnant and non-pregnant women
Variables | Pregnancy ( +) | Non-pregnancy ( −) | P value |
|---|---|---|---|
(N = 3656) | (N = 9335) | ||
Age (years) | 30.18 ± 4.13 | 32.42 ± 5.75 | < 0.01 |
BMI (kg/m2) | 21.88 ± 2.93 | 21.93 ± 2.90 | 0.3278 |
Cycle protocols | < 0.01 | ||
Long agonist protocol | 2302 (63.0%) | 4423 (47.4%) | |
Short agonist protocol | 575 (15.7%) | 1870 (20.0%) | |
Prolonged agonist protocol | 565 (15.5%) | 857 (9.2%) | |
Other | 214 (5.9%) | 2185 (23.4%) | |
Duration of infertility (years) | 3.67 ± 2.68 | 4.25 ± 3.61 | < 0.01 |
FSH (mIU/ml) | 7.38 ± 2.57 | 8.05 ± 3.65 | < 0.01 |
embryo transferred | 1.86 ± 0.34 | 0.66 ± 0.87 | < 0.01 |
HMG | 8.05 ± 7.54 | 9.74 ± 8.92 | < 0.01 |
Gntime | 10 ± 1.78 | 9.82 ± 2.05 | < 0.01 |
mature follicles | 9.97 ± 3.93 | 9.47 ± 5.67 | < 0.01 |
endometrial thickness on HCGday | 11.68 ± 2.38 | 10.54 ± 2.81 | < 0.01 |
E2 | 3362.93 ± 1756.74 | 3477.31 ± 2652.94 | 0.004228 |
Progesterone (ng/ml) | 0.9 ± 0.30 | 1.23 ± 1.72 | < 0.01 |
oocytes retrieved (n) | 11.31 ± 4.59 | 11.33 ± 7.94 | 0.8667 |
endometrial morphology | < 0.01 | ||
a | 2801 (76.6%) | 5754 (61.6%) | |
b | 539 (14.7%) | 1895 (20.3%) | |
c | 316 (8.6%) | 1686 (18.1%) |