Age group I 20 - 34 (n = 133)

Age group II 35 - 39 (n = 133)

Age group III 40 - 42 (n = 78)

Age group IV 43 - 47 (n = 42)

P Value

Unilateral tubal occlusion (%)

18

14.3

16.7

4.8

0.2

Bilateral tubal occlusion (%)

13.5

12.8

25.6

21.4

0.054

Pelvic adhesions (%)

13

9

24.4

9.5

0.005

Male factor (%)

81

66.9

53.8

64.3

0.308

Unexplained infertility (%)

28

17.3

20.5

23.8

0.778

Endometriosis (%)

14

6.8

6.4

7.1

0.63

Menstrual length (days ± STD)

36.46 ± 30.36

29.69 ± 14.26

28.17 ± 2.03

29.48 ± 11.31

0.026

FSH (IU/ml ± STD)

8.998 ± 7.046

9.637 ± 5.11

10.938 ± 6.201

10.274 ± 5.311

0.006

Prolactinng/ml

16.57 ± 8.667

17.26 ± 10.854

13.69 ± 7.683

16.83 ± 3.369

0.028

TSH (IU/ml ± STD)

2.21 ± 1.242

2 ± 1.074

2.33 ± 0.921

2.93 ± 1.701

0.002

POR in the past %

30.8

43.6

53.8

38.1

0.016