Table 1: Baseline characteristics of the included patients.

Variable

Letrozole (Group A)

Letrozole plus Gonadotropin (Group B)

Total

P-value¥

(n = 45)

(n = 45)

(n = 90)

Mean

Standard Deviation

Mean

Standard Deviation

Mean

Standard Deviation

Age (year)

27.3

3.6

25

3

26.1

3.5

0.002*

BMI (kg/m2)

28

1.8

28.8

2.3

28.3

2.1

0.091

Prior Infertility period (year)

2.6

1

2.6

0.7

2.6

0.8

0.731

FSH (mIU/mL)

5.8

1.3

5.8

0.9

5.8

1.1

0.993

Progesterone (ng/mL)

1.9

0.7

1.8

0.7

1.8

0.7

0.26

LH (IU/L)

6.2

1.3

6.2

0.9

6.2

1.1

0.948

Baseline E2 (pg/mL)

53.8

9.9

50.4

16.6

52.1

13.7

0.248

Prolactin (ng/mL)

13.6

3.1

15

4.1

14.3

3.7

0.127

TSH (mU/L)

2.3

0.8

2.1

0.5

2.2

0.7

0.4

¥Mann-Whitney U test; *Significant P-value