Variable

Unit

n

Seminal Fluid Volume (mls)

Sperm count (×10⁶/ml)

Liquefaction time (min)

Mean

±sd

t-test

P-value

Mean

±sd

t-test

P-value

Mean

±sd

t-test

P-value

Normal sperm count

All

453

2.3

1.6

0.98

0.16

40.4

19.8

103.61

0.000001

30.8

8.8

−0.17

0.43

Oligospermia

349

2.2

1.3

5.6

3.9

30.9

8.0

Age (years)

Normal

<30

4

3.9

4.1

0.71

0.26

35.7

26.7

2.40

0.04

30.0

0.0

−0.97

0.18

Oligospermia

7

2.4

1.2

3.4

4.3

32.1

5.7

Normal

30 - 39

153

2.4

1.4

0.00

1.00

40.3

19.4

21.65

0.000001

30.6

9.3

0.52

0.30

Oligospermia

110

2.4

1.3

5.4

3.9

30.1

6.3

Normal

40 - 49

224

2.2

1.3

−0.76

0.22

41.1

21.0

24.72

0.000001

30.2

7.0

−1.70

0.04

Oligospermia

172

2.3

1.3

5.6

4.0

31.7

9.8

Normal

50 - 59

66

2.4

2.4

2.86

0.002

38.4

17.1

15.03

0.000001

32.6

11.6

1.96

0.03

Oligospermia

56

1.5

0.8

5.9

3.7

29.6

4.1

Normal

≥60

6

1.5

0.8

−0.90

0.20

41.2

10.9

7.57

0.0002

37.5

18.4

1.00

0.18

Oligospermia

4

1.9

0.6

6.0

2.7

30.0

0.0

BMI

(kg/m²)

Normal

<18.5

1

7.0

0.0

-

-

30.0

0.0

-

-

30.0

0.0

-

-

Oligospermia

3

2.7

1.3

9.3

3.0

30.0

0.0

Normal

18.5 - 24.9

147

2.3

1.5

−0.53

0.30

41.2

19.5

20.99

0.000001

31.8

9.9

0.36

0.36

Oligospermia

98

2.4

1.4

6.4

4.0

31.3

10.9

Normal

25.0 - 29.9

234

2.4

1.7

2.09

0.02

38.9

19.0

43.67

0.000001

30.6

7.8

0.14

0.44

Oligospermia

174

2.1

1.2

5.4

3.8

30.5

6.2

Normal

≥30

71

2.0

1.1

−0.52

0.30

43.7

22.9

14.20

0.000001

29.4

9.7

5.20

0.000001

Oligospermia

74

2.1

1.2

4.6

3.8

31.1

7.3