Semen characteristics for leatherworkers and non-leatherworkers (current or most recent job) (n=1580)
| Characteristics | Leatherworkers | Non-leatherworkers |
| Sperm concentration (×106 per ml): | ||
| Men (n) | 22 | 1558 |
| Mean | 62.0 | 62.7 |
| SD | 59.7 | 63.7 |
| Median | 50.0 | 47.5 |
| Range | 0–239 | 0–565 |
| Sperm motility: | ||
| Men (n) | 22 | 1558 |
| Mean (%) | 51 | 48 |
| SD (%) | 23.5 | 22.2 |
| Median (%) | 56 | 40 |
| Range (%) | 0–92.5 | 0–95 |
| Sperm deformity: | ||
| Men (n) | 20 | 1560 |
| Mean (%) | 35 | 39 |
| SD (%) | 19.1 | 20.6 |
| Median (%) | 37.5 | 38 |
| Range (%) | 0–78.0 | 0–98 |