Parameter

Group 1

<24.9

N = 104

Group 2

25 - 29.9

N = 122

Group 3

>30

N = 50

P value

Volume (ml)

(SD)

3.4

(1.7)

3.3

(1.7)

3.3

(1.7)

>0.05

Sperm concentration (million/ml)

(SD)

42.9

(24.2)

37.4

(24.4)

34.4

(25.3)

0.037