| Before | After | p value |
---|---|---|---|
Qualified rate | 27.04 (1090/4031) | 19.68 (935/4752) | 0.000 |
Semen concentration | 50 (30, 62) | 48 (30, 64) | 0.001 |
Sperm viability | 50 (43, 50) | 50 (40, 50) | 0.000 |
Age | 21 (20, 24) | 21 (20, 23) | 0.000 |
Abstinence days | 5 (4, 7) | 4 (4, 5) | 0.000 |
BMI | 21.3 (19.6, 23.4) | 21.5 (19.8, 23.7) | 0.001 |