| Basal progesterone ≤1.5 ng/ml (n = 268) | Basal progesterone >1.5 ng/ml (n = 16) | P value |
Retrieved oocytes No. | 11.54 ± 2.23 | 13.63 ± 2.31 | 0.000* |
Retrieved M II oocytes No. | 6.65 ± 1.55 | 7.83 ± 1.97 | 0.010* |
Maturation rate % (M II/oocytes retrieved) | 57.6 ± 14.1 | 57.4 ± 14.0 | 0.281 |
Fertilized oocytes No. | 4.23 ± 0.69 | 4.63 ± 1.27 | 0.545 |
Fertilization rate % (Fertilized/ M II retrieved) | 63.6 ±15.3 | 59.1 ± 17.9 | 0.046 |
Cleaved embryos No. | 4.12 ± 0.66 | 4.25 ± 1.15 | 0.717 |
Embryos cleavage rate % (Cleaved/fertilized) | 97.4 ± 0.6 | 91.8 ± 1.3 | 0.371 |
Clinical pregnancy (%) | 84 (29.4%) | 3 (18.8%) | 0.571 |
Live birth (%) | 61 (21.3%) | 3 (18.8%) | 1.000 |