High grade

Mixed grade

Low grade

F

P value

Age (year)

Mean ± SD

Range

27.9 ± 4.9

21 - 38

28.5 ± 4.1

20 - 35

27.3 ± 4.5

20 - 35

0.62

0.53

BMI

Mean ± SD

Range

26.7 ± 2.1

22.6 - 30

26.7 ± 2.4

23 - 30

26.6 ± 2.2

22 - 30

0.01

0.98

Type of infer

Primary

Secondary

n

17

13

%

56.7

43.3

n

15

15

%

50

50

n

19

11

%

63.3

36.7

1.09

0.58

Duration of infer

Mean ± SD

Range

3.4 ± 2.1

1 - 8

3.36 ± 1.7

1 - 8

3.7 ± 2.2

1 - 8

0.24

0.78

Cause of infer

Unexplained

Male factor

Female factor

n

15

5

10

%

50

16.7

33.3

n

15

4

11

%

50

13.3

36.7

n

15

4

11

%

50

13.3

36.7

0.22

0.99