Table 3.
Baseline characteristics in cycles that did or did not result in pregnancy after treatment by antagonist protocol.
| Pregnancy (482) | No pregnancy (1519) | p | |
|---|---|---|---|
| Age (years) | |||
| ≤28 y | 149 (30.91%) | 285 (18.76%) | <0.001 |
| ≤35 y | 210 (43.57%) | 560 (36.87%) | |
| ≤37 y | 56 (11.62%) | 160 (10.53%) | |
| ≤39 y | 42 (8.71%) | 159 (10.47%) | |
| ≤41 y | 19 (3.94%) | 153 (10.07%) | |
| ≥42 y | 6 (1.24%) | 202 (13.3%) | |
| The times of ART | |||
| 1–2 | 456 (94.61%) | 1349 (88.81%) | <0.001 |
| 3-4 | 25 (5.19%) | 145 (9.55%) | |
| ≥5 | 1 (0.21%) | 25 (1.65%) | |
| OSI | <0.001 | ||
| ≤0.1 | 26 (5.39%) | 194 (12.81%) | |
| ≤0.3 | 199 (41.29%) | 698 (46.07%) | |
| ≤0.5 | 172 (35.68%) | 302 (19.93%) | |
| ≤0.6 | 19 (3.94%) | 66 (4.36%) | |
| ≤0.8 | 35 (7.26%) | 67 (4.42%) | |
| ≤1 | 18 (3.73%) | 62 (4.09%) | |
| ≤1.2 | 5 (1.04%) | 36 (2.38%) | |
| >1.2 | 8 (1.66%) | 90 (5.94%) | |
| Basal FSH | 8.38 (2.49) | 8.68 (3.47) | 0.04 |
| Number of oocytes retrieved | 8.4 (4.16) | 8.47 (6.95) | 0.768 |
| Number of MII oocytes | 7.57 (3.83) | 7.51 (5.88) | 0.788 |
| Number of embryos transferred | 1.8 (0.48) | 0.69 (0.90) | <0.001 |
| Duration of infertility (years) | 3.81 (3.22) | 4.57 (3.97) | <0.001 |
| Cause of female infertility | |||
| cause1 | 101 (20.95%) | 358 (23.57%) | 0.063 |
| cause2 | 235 (48.76%) | 641 (42.2%) | |
| cause3 | 138 (28.63%) | 479 (31.53%) | |
| cause4 | 8 (1.66%) | 41 (2.7%) | |
| Estradiol on day of HCG (pg/ml) | 2215 (1218.36) | 2435.07 (2001.18) | 0.004 |
| Progesterone on day of HCG (ng/ml) | 0.86 (0.30) | 1.06 (0.60) | <0.001 |
| LH on day of HCG (mIU/ml) | 3.25 (2.46) | 3.73 (6.55) | 0.017 |
| Endometrial thickness (mm) | |||
| <7 | 8 (1.66%) | 87 (5.85%) | <0.001 |
| 7–10 | 160 (33.20%) | 579 (38.96%) | |
| >10 | 314 (65.15%) | 820 (55.18%) | |
| Antral follicle count | 9.59 (6.96) | 9.21 (7.52) | 0.3 |
| BMI (kg/m2) | 21.9 (2.85) | 22.22 (2.84) | 0.035 |
Data are mean(SD) or number (percentage).
BMI: body mass index (kg/m2);
OSI: ovarian sensitivity index.
Cause1: ovulation factor.
Cause2: non-ovulation factor.
Cause3: ovulation factor plus non-ovulation factor.
Cause4: unexplained,etc.
Gn: gonadotropin.
aTwo-sample t-test.
bPearsonχ2 test.