| Male characteristics |
Age mean (± SD) | 34.8 (7) |
Race N (%) |
|
Caucasian | 171 (98%) |
Smoking N (%) |
|
Yes | 61 (35%) |
No | 84 (48%) |
Unknown | 30 (17%) |
Alcohol N (%) |
|
Yes | 99 (57%) |
No | 44 (25%) |
Unknown | 32 (18%) |
Drugs N (%) |
|
Yes | 5 (3%) |
No | 132 (75%) |
Unknown | 38 (22%) |
Professions with negative effects on fertility1 N (%) | 10 (6%) |
CO2-welder | 5 (3%) |
With solvents | 4 (2%) |
With oil | 1 (1%) |
No | 119 (68%) |
Unknown | 46 (26%) |
Medication possible affecting fertility2 N (%) | 8 (5%) |
Sexual dysfunction | 8 (5%) |
Decreased quality/quanitity of the sperm | 6 (3%) |
No | 165 (94%) |
(Former) disorders affecting fertility N (%) | 6 (3%) |
Malignancy | 2 (1%) |
Chemotherapy | 2 (1%) |
Retractlie testicle | 1 (1%) |
Testosterone deprivation | 1 (1%) |
Suppletion | 2 (1%) |
Spermatocele | 1 (1%) |
No | 168 (96%) |