Table 1.
Seminal and sperm functional analyses of men with low and high sperm DNA fragmentation. Groups were compared by Mann-Whitney test (values expressed in median; interquartile range).
| Low (n = 40) | High (n = 38) | p | |
|---|---|---|---|
| Age (years) | 34.0; 7.25 | 34.3; 13.75 | 0.128 |
| Volume (mL) | 3.3; 1.90 | 3.3; 1.67 | 0.579 |
| pH | 8.0; 0.50 | 8.0; 0.50 | 0.316 |
| Liquefaction time (minutes) | 27.5; 20.00 | 27.5; 21.25 | 0.354 |
| Sperm concentration (x106/mL) | 100.8; 123.15 | 60.55; 77.77 | 0.583 |
| Total count (x106) | 302.5; 461;25 | 301.7; 297.70 | 0.657 |
| Progressive motility (%) | 50.5; 10.75 | 54.0; 13.75 | 0.753 |
| Non-progressive motility (%) | 6.0; 3.75 | 4.5; 2.00 | 0.511 |
| Immotile (%) | 45.0; 12.75 | 41.0; 16.00 | 0.565 |
| Morphology (% normal) | 7.0; 4.75 | 6.5; 4.25 | 0.751 |
| Round cells (x106/mL) | 0.9; 2.80 | 0.8; 4.60 | 0.503 |
| Neutrophils (x106/mL) | 0.0; 0.27 | 0.0; 0.00 | 0.391 |
| Comet distributed moment (a.u.) | 25.7; 4.99 | 62.1; 15.50 | <0.0001* |
| Acrosome integrity (%) | 72.5; 13.00 | 78.5; 14.00 | 0.017* |
| DAB I (%) | 11.0; 10.55 | 10.4; 13.87 | 0.980 |
| DAB II (%) | 63.5; 16.50 | 68.0; 22.62 | 0.686 |
| DAB III (%) | 14.0; 9.75 | 10.75; 10.75 | 0.023* |
| DAB IV (%) | 7.0; 8.75 | 8.5; 14.12 | 0.086 |
*Statistically significant difference. High – high sperm DNA fragmentation group. Low – low sperm DNA fragmentation group.
a.u. – arbitrary units.
*Statistically significant differente (p < 0.05).