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Table 1 Sperm parameters according to leukocyte concentration category

From: The association between leukocytes and sperm quality is concentration dependent

 

Leukocyte concentration category

Statistical comparisons between groupsa

 

A

B

C

D

E

A/B

A/C

A/D

A/E

Age (years)

35.0

(29.0-40.0)

35.0

(30.0-41.0)

36.0 (31.0-41.0)

33.5 (29.0-40.0)

33.0 (27.0-39.75)

0.629

0.176

0.762

0.14

Sperm concentration

(106/mL)

2.6

(0.1-7.25)

5.5 (2.2-11.76)

4.6 (1.9-8.7)

4.6 (1.8-9.76)

3.6 (1.6-9.53)

0.001

0.001

0.002

0.014

Normal morphology

(%)

14.0

(0-26.5)

19.0 (11.25-32.0)

18.0 (11.0-37.0)

19.0

(11.25-26.75)

14.0 (7.25-25.75)

0.001

0.003

0.021

0.452

Head deformities

(%)

24.0

(0.0-35.0)

31.0 (18.25-39.0)

32.0 (22.5-39.0)

31.5 (22.5-40.0)

31.0 (20.0-39.0)

0.001

0.001

0.001

0.004

Midpiece deformities

(%)

22.0

(0.0-35.0)

29.0 (20.0-36.0)

30.0 (20.0-39.0)

32.5 (22.5-38.0)

31.5 (20.5-39.0)

0.001

0.001

0.001

0.001

Tail deformities

(%)

5.0

(0.0-11.0)

7.0 (4.0-11.0)

7.0 (3.0-10.5)

9.0 (6.0-12.0)

8.0 (4.0-12.0)

0.004

0.041

0.001

0.016

Motility grade a+b (%)

20.0

(0-45-0)

32.0 (9.0-60.75)

29.0 (10.0-46.5)

28.5 (8.25-56.75)

20.5 (10.0-39.25)

0.001

0.123

0.09

0.588

Motility grade a (%)

12.0

(0.0-31.0)

22.5 (4.25-44.0)

19.0 (3.0-36.0)

18.0 (4.25-36.75)

11.0 (0.5-27.0)

0.001

0.216

0.086

0.989

Motility grade b (%)

5.0

(0.0-13.0)

9.0 (3.0-15.0)

8.0 (0.0-15.0)

9.0 (0.0-15.0)

7.0 (0.0-13.0)

0.001

0.04

0.076

0.29

Motility grade c (%)

2.0

(0.0-8.0)

5.0 (2.0-10.0)

5.0 (0.5-11.0)

4.5 (0.25-8.0)

5.0 (0.0-10.0)

0.001

0.002

0.072

0.026

Motility grade d (%)

42.0

(1.5-76.0)

51.0 (23.2-73.5)

56.0 (31.0-87.0)

56.0 (31.0-87.0)

68.0 (35.5-85.0)

0.015

0.002

0.006

0.001

Leukocyte concentration

(106/mL)

0.0

0.25

(0.25-0.25)

0.5 (0.5-0.5)

0.75 (0.75-0.75)

1.25 (1.0-1.93)

   

0.001

  1. aMann-Whitney t test
  2. Category A: >0 to <0.25 × 106/mL; category B: >0.25 to <0.5 × 106/mL; category C: >0.5 to <0.75 × 106/mL; category D: >0.75 to <1 × 106/mL; category E: >1 × 106/mL. Bold denotes values that differ significantly from category A. Data are given in medians and interquartile ranges.