Category

Variable

Item

Total

Sperm morphology

Small tapering head defect

Oval head

Double amorphous head

Midpiece defect

Tail defect

Immature form

Mean (±sd)

Mean (±sd)

Mean (±sd)

Mean (±sd)

Mean (±sd)

Mean (±sd)

Normal sperm count ×10⁶/ml

Age

<30

4

27.5 (5.0)

50.0 (8.1)

7.5 (5.0)

5.0 (0.0)

5.0 (0.0)

5.0 (0.0)

30 - 39

153

30.4 (7.8)

48.2 (9.0)

6.2 (6.9)

5.4 (2.6)

5.1 (0.6)

5.1 (0.8)

40 - 49

224

30.9 (8.3)

47.1 (8.9)

6.2 (4.6)

5.5 (2.3)

5.0 (0.6)

5.2 (1.5)

50 - 59

66

30.6 (7.0)

46.4 (9.0)

6.3 (3.9)

5.8 (2.6)

5.0 (0.0)

5.4 (2.6)

≥60

6

34.2 (4.9)

43.3 (8.2)

7.5 (6.1)

5.0 (0.0)

5.0 (0.0)

5.0 (0.0)

BMI

<18.5

1

40.0 (0.0)

40.0 (0.0)

5.0 (0.0)

5.0 (0.0)

5.0 (0.0)

5.0 (0.0)

18.5 - 24.9

147

30.2 (7.3)

47.9 (8.6)

6.4 (5.5)

5.4(1.8)

5.0 (0.7)

5.3 (1.9)

25.0 - 29.9

234

31.1 (8.1)

46.9 (9.1)

6.3 (5.0)

5.6 (2.4)

5.0 (0.5)

5.2 (1.5)

≥30

71

30.6 (8.4)

47.9 (9.2)

5.8 (3.7)

5.8 (3.3)

5.0 (0.0)

5.0 (0.0)

Oligospermia

Age

<30

7

24.3 (7.9)

48.6 (9.0)

11.4 (9.4)

5.0 (0.0)

5.7 (1.9)

5.0 (0.0)

30 - 39

110

34.1 (9.7)

40.7 (10.6)

8.1 (7.7)

7.0 (6.2)

5.1 (1.1)

5.3 (2.1)

40 - 49

172

31.0 (8.8)

42.5 (11.4)

9.4 (9.7)

6.2 (3.8)

5.1 (1.1)

5.7 (5.1)

50 - 59

56

29.9 (7.9)

44.4 (10.3)

8.3 (6.9)

6.6 (4.4)

5.4 (1.3)

5.4 (2.4)

≥60

4

27.5 (9.6)

45.0 (10.0)

8.7 (7.5)

8.7 (4.8)

6.2 (2.5)

3.7 (2.5)

BMI

<18.5

3

30.0 (10.0)

50.0 (10.0)

5.0 (0.0)

5.0 (0.0)

5.0 (0.0)

5.0 (0.0)

18.5 - 24.9

98

33.3 (8.4)

42.7 (9.5)

7.5 (7.0)

6.1 (3.9)

5.1 (0.8)

5.3 (2.4)

25.0 - 29.9

174

30.4 (9.4)

42.1 (11.8)

9.9 (10.0)

6.7 (4.8)

5.3 (1.5)

5.8 (5.3)

≥30

74

32.4 (9.0)

42.3 (10.9)

8.4 (7.2)

6.5 (5.6)

5.1 (0.8)

5.1 (0.6)

Oligospermia

349

32.1 (9.1)

43.0 (10.7)

8.2 (8.1)

6.3 (4.3)

5.1 (1.1)

5.4 (3.5)

Normal sperm count

453

29.9 (7.4)

47.8 (8.9)

6.4 (5.0)

5.6 (2.5)

5.0 (0.6)

5.2 (1.7)

t-test (P-value)

3.96 (0.00001)

-7.31 (0.00001)

4.20 (0.00001)

3.12 (0.0009)

1.81 (0.04)

0.81 (0.21)