Table 2.
Distribution of semen quality, sperm motion parameters, and comet assay-measured DNA damage (N = 190).
| Parameter | Mean | Selected Percentiles |
||||
|---|---|---|---|---|---|---|
| 10th | 25th | 50th | 75th | 90th | ||
| Semen Quality | ||||||
| Total Sperm Count (106) | 279 | 22.0 | 68.7 | 186 | 407 | 643 |
| Concentration (106/ml) | 99.6 | 8.8 | 23.8 | 64.1 | 145 | 225 |
| Motility (%) | 45.8 | 13 | 26 | 49 | 66 | 77 |
| Morphology (% normal) | 7.2 | 1 | 3 | 7 | 10 | 14 |
| Sperm Motion | ||||||
| Straight-line Velocity (μm/s) | 42.4 | 26.2 | 35.7 | 43.6 | 51.8 | 59.8 |
| Curvilinear Velocity (μm/s) | 73.0 | 46.7 | 62.8 | 73.7 | 87.7 | 100.6 |
| Linearity (%) | 55.2 | 46 | 53 | 57 | 63 | 68 |
| Sperm DNA Damagea | ||||||
| Comet Extent (μm) | 149 | 94.0 | 111 | 143 | 179 | 215 |
| Tail Distributed Moment (μm) | 62.7 | 41.4 | 50.2 | 60.6 | 74.6 | 87.4 |
| Percent DNA in Tail (%) | 40.0 | 17.4 | 23.6 | 40.2 | 50.4 | 66.0 |
a
N = 132 for DNA damage measures