Table 1 Baseline characteristics of male in infertile couples

Age (years)

 Mean: 35.31 ± 6.08 (33.87—36.75)

  < 35

31

43.7

  ≥ 35

40

56.3

Infertility types

 Primary

44

62.0

 Secondary

27

38.0

Infertility duration (years)

 Mean: 4.45 ± 2.52 (3.85—5.05)

 < 3

21

29.6

 ≥ 3

50

70.4

History of mumps

 Yes

7

9.9

 No

64

90.1

Alcohol consumption

 Yes

39

54.9

 No

32

45.1

Triglycerides (mmol/L)

2.0 ± 1.2

Total cholesterol (mmol/L)

4.7 ± 0.8

HDL-C (mmol/L)

1.3 ± 0.4

LDL-C (mmol/L)

3.1 ± 0.8

Glucose (mmol/L)

5.5 ± 1.4