Table 6 Study population in relation to clinical pregnant outcome (n = 318)

Female age (year)

26.79±5.37

29.57±6.12

< 0.001

Basal E2 level (pg/mL)

32.36±19.21

39.34±18.56

< 0.001

Basal FSH level (mIU/mL)

7.37±2.18

7.31±3.05

0.233

Basal LH level (ng/mL)

5.87±3.24

5.80±3.64

0.514

Basal PRL level (ng/mL)

15.25±6.49

16.20±17.41

0.306

Basal TSH level (uIU/mL)

1.93±1.17

2.10±1.50

0.555

AMH level (ng/mL)

3.90±2.93

3.25±3.19

0.002

E2 level on hCG day (pg/ml)

2016.37±832.07

1957.21±952.56

0.404

Number of retrieved oocytes

11.54±5.45

8.28±4.64

< 0.001

Number of mature oocytes

8.25±3.72

5.69±2.97

< 0.001

Number of immature oocytes

3.19±2.93

2.59±2.81

0.013

Number of fertilized oocytes

6.42±2.58

4.68±2.36

< 0.001

Number of embryos transferred

4.30±1.40

3.19±1.68

< 0.001