Table 1 Semen parameters in all donors, proven donors and proven donors <2 years compared with patients

All donors vs. all patients

Volume (mL)

3.36 ± 2.02

3.15 ± 1.49

0.95

Concentration (X10 ⁶ /mL)

54.26 ± 32.19

45.33 ± 51.00

0.001

Motility (%)

53.70 ± 15.00

46.95 ± 20.16

0.016

Endtz(X10 ⁶ /mL)

1.04 ± 2.54

0.50 ± 1.62

0.41

Normal morphology (%)

6.93 ± 3.91

3.20 ± 2.91

<0.001

ROS (RLU/s)

228.80 ± 396.27

12540.40 ± 70846.85

<0.001

64.8(21.1,198.2)^a

267.5(59.4, 1320)^a

Proven donors vs. all patients

Volume (mL)

4.24 ± 2.13

3.15 ± 1.49

0.008

Concentration (X10 ⁶ /mL)

60.07 ± 33.44

45.33 ± 51.00

0.002

Motility (%)

50.85 ± 13.52

46.95 ± 20.16

0.30

WBC X10 ⁶ /mL)

0.00 ± 0.00

0.50 ± 1.62

0.09

Normal morphology (%)

7.00 ± 4.35

3.20 ± 2.91

<0.001

ROS (RLU/s)

149.46 ± 275.08

12540.40 ± 70846.85

<0.001

75.8(33.3, 147.8)^a

267.5(59.4, 1320)^a

Proven donors <2y vs. all patients

Volume (mL)

5.03 ± 2.22

3.15 ± 1.49

<0.001

Concentration (X10 ⁶ /mL)

61.59 ± 23.93

45.33 ± 51.00

0.002

Motility (%)

49.88 ± 8.68

46.95 ± 20.16

0.40

Endtz(X10 ⁶ /mL)

0.00 ± 0.00

0.50 ± 1.62

0.18

Normal morphology (%)

6.77 ± 4.95

3.20 ± 2.91

0.006

ROS (RLU/s)

54.53 ± 45.31

12540.40 ± 70846.85

<0.001

75.8(33.3, 147.8)^a

267.5(59.4, 1320)^a