Group A

Group B

t

Duration of stimulation

8.68 ± 1.12

12.40 ± 1.47

16.73

<0.001* (ES)

E2 levels

717.6 ± 17.4

1028.7 ± 80.85

19.22

<0.001* (ES)

N of follicles ≥ 18 mm

1.75 ± 0.52

1.87 ± 0.67

1.11

0.26 (NS)

Endometrial thickness at day of HCG stimulation

8.97 ± 0.99

10.24 ± 6.58

9.25

<0.001* (ES)