Table 1.
Demographic, COH and embryology data in the two groups
| Characteristics | Pregnanta n = 81 |
Non-pregnant n = 65 |
P |
|---|---|---|---|
| Age(y) | 29.70 ± 4.19 | 30.63 ± 4.44 | 0.197 |
| Etiology of infertility | 0.292 | ||
| Tubal n(%) | 67 (82.7%) | 59 (90.8) | |
| Male n(%) | 6 (7.4%) | 3 (4.6) | |
| Both n(%) | 7 (8.6%) | 2 (3.1) | |
| Idiopathic n(%) | 1 (1.2%) | 0 (0%) | |
| Ovulation disorder n(%) | 0 (0%) | 1 (1.5) | |
| BMI (Kg*m−2) | 21.14 ± 2.49 | 21.37 ± 2.84 | 0.598 |
| Duration of infertility(y) | 3.84 ± 2.70 | 3.81 ± 3.11 | 0.947 |
| Basal FSH (mIU/mL) | 6.76 ± 1.91 | 7.22 ± 1.97 | 0.161 |
| Basal LH (mIU/mL) | 6.11 ± 3.24 | 6.06 ± 3.77 | 0.945 |
| Basal E2 (pg/mL) | 40.78 ± 23.60 | 37.30 ± 21.83 | 0.368 |
| AMH (ng/mL) | 4.10 ± 2.73 | 3.82 ± 2.78 | 0.557 |
| AFC, n | 14.46 ± 6.34 | 14.29 ± 5.45 | 0.866 |
| Length of stimulation (days) | 11.35 ± 1.94 | 11.43 ± 2.12 | 0.801 |
| Total dose of Gn administered (IU) | 2020.70 ± 789.82 | 2160.00 ± 758.56 | 0.283 |
| bLH levels (mIU/mL) | 1.75 ± 1.03 | 1.53 ± 0.98 | 0.191 |
| bE2 levels (pg/mL) | 2585.65 ± 1177.69 | 2503.44 ± 1167.27 | 0.675 |
| bP levels (ng/mL) | 0.67 ± 0.33 | 0.59 ± 0.30 | 0.116 |
| No. of oocytes retrieved | 10.83 ± 3.97 | 11.20 ± 4.24 | 0.584 |
| Top-quality embryo rate | 0.53 ± 0.25 | 0.50 ± 0.24 | 0.406 |
| No. of embryos transferred | 1.90 ± 0.30 | 1.80 ± 0.40 | 0.095 |
BMI Body mass index, E2 Oestradiol, AMH Anti-Mullerian hormone, AFC Antral follicle count, Gn Gonadotrophin
aPatients who achieved a clinical pregnancy
b on the day of hCG administration