Table 1 Patients’ characteristics

Infertility duration (years)

4.00 (3.00, 6.00)

LH (IU/L)

4.55 (3.37, 5.97)

AMH (μg/L)

5.70 (3.10, 12.20)

Total gonadotropin dose

2,900.00 (2,275, 3,650.00)

Duration of Stimulation

10.00 (9.00, 11.00)

Serum estradiol on the 5^th day of rFSH administration (pg/ml)

401.00 (300.00, 585.00)

Serum estradiol on the day of hCG administration (pg/ml)

2,022.00 (1,561.00, 2,569.00)

Number of follicles aspirated

9.00 (7.00, 10.00)

Grade 2 embryos

0.00 (0.00, 2.00)

Grade 3 embryos

4.00 (3.00, 7.00)

High quality embryo ratio (%)

100.00 (66.67, 100.00)