Variables | Group Aa (n = 239) | Group Bb (n = 47) | Group Cc (n = 9) | Group Dd (n = 7) | P value |
Age (years) (mean ± SD) | 25.8 ± 2.5 | 26.1 ± 2.9 | 26.2 ± 2.8 | 26.6 ± 3.2 | 0.833 |
BMI (kg/m2) (mean ± SD) | 25.4 ± 1.4 | 25.5 ± 1.5 | 25.5 ± 1.3 | 24.7 ± 1.5 | 0.722 |
Parity | 1 (0-1) | 1 (0-1) | 1 (0-1) | 0 (0-1) | 0.678 |
Infertility duration (years) (mean ± SD) | 3.9 ± 1.6 | 4.1 ± 1.8 | 4.2 ± 1.9 | 4.4 ± 2.7 | 0.815 |
FSH (IU/mL) (mean ± SD) | 6.3 ± 1.9 | 5.8 ± 1.9 | 6.7 ± 2.7 | 5.5 ± 2.2 | 0.320 |
Basal Estradiol (pg/mL) (mean ± SD) | 71.4 ± 16.1 | 70.7 ± 11.9 | 68.8 ± 14.0 | 63.8 ± 19.8 | 0.702 |
Basal progesterone (ng/mL) (mean ± SD) | 0.66 ± 0.15 | 0.84 ± 0.18 | 1.77 ± 0.16 | 1.78 ± 0.18 | 0.000* |
Progesterone on hCG day (ng/mL) (mean ± SD) | 0.64 ± 0.15 | 1.88 ± 0.15 | 1.02 ± 0.25 | 1.99 ± 0.51 | 0.000* |
No. of follicles on hCG day (mean ± SD) | 5.67 ± 2.15 | 7.31 ± 1.35 | 5.24 ± 1.58 | 7.62 ± 1.71 | 0.001* |
Total gonadotrophins (IU) (mean ± SD) | 2077 ± 164 | 2208 ± 177 | 2235 ± 171 | 2421 ± 124 | 0.000* |
Duration of stimulation (days) (mean ± SD) | 9.98 ± 0.95 | 9.87 ± 0.80 | 9.78 ± 0.83 | 10.43 ± 0.53 | 0.482 |
Endometrial thickness ET day (mm) (mean ± SD) | 10.28 ± 1.18 | 10.41 ± 1.10 | 10.33 ± 0.50 | 9.71 ± 0.75 | 0.440 |