Table 1 Clinical characteristics of two study arms

Number of couples

48

73

-

Female age

35.4 ± 4.2

36.1 ± 4.1

0.365

Male age

39.3 ± 6.0

37.7 ± 6.0

0.154

Female BMI

22.9 ± 3.4

23.4 ± 4.5

0.513

Duration of the infertility (mo)

19.5 ± 5.1

18.2 ± 3.9

0.116

Primary infertility (n.; %)

44/48; 91.7

70/73; 95.9

0.434

Oligo-anovulation (n.; %)

12/48; 25.0

16/73; 21.9

0.826

Tubal factor (n.; %)^a

4/48; 8.3

6/73; 8.2

1.00

Stimulation length (days)

12.9 ± 4.0

13.2 ± 3.3

0.654

Gonadotropins dose (IU)

2169.9 ± 1077.5

2536.8 ± 1534.1

0.153

Dominant follicles on day of ovulation triggering (n.)

5.6 ± 2.6

4.9 ± 2.7

0.160

Peak of E₂ levels on day of ovulation triggering (pg/mL)

1356.3 ± 724.8

1255.0 ± 720.6

0.453