| Biological signs | Number of employees (n) | Percentage (%) |
| Testosterone (N = 23) |
|
|
| High | 14 | 61.0 |
| Normal | 9 | 39.0 |
| Low | 0 | 0.0 |
| FSH (N = 24) |
|
|
| High | 5 | 21.0 |
| Normal | 19 | 79.0 |
| Low | 0 | 0.0 |
| LH (N = 12) |
|
|
| High | 5 | 42.0 |
| Normal | 7 | 58.0 |
| Low | 0 | 0.0 |
| Prolactin (N = 21) |
|
|
| High | 7 | 33.0 |
| Normal | 13 | 62.0 |
| Low | 1 | 5.0 |
| Estradiol (N = 12) |
|
|
| High | 3 | 25.0 |