Table 1.
Comparison of the semen parameters of the four study groups.
| Group 1 Age ≤39 years normal DNA fragmentation |
Group 2 Age ≤39 years altered DNA fragmentation |
Group 3 Age ≥40 years normal DNA fragmentation |
Group 4 Age ≥40 years altered DNA fragmentation |
|
|---|---|---|---|---|
| N | 52 | 32 | 49 | 30 |
| Mean male age | 35.9±2.8a | 35.7±2.6a | 45.6±3.9b | 46.4±3.4b |
| Normal viscosity | 30/52 (58%) | 16/32 (50%) | 27/49 (55%) | 16/30 (53%) |
| Volume (ml) | 3.1±1.8 | 3.4±1.8 | 2.9±1.9 | 2.8±1.9 |
| Concentration (106spz/mL)* | 62.3±55.5 | 73.6±52.1 | 69.7±52.0 | 63.7±56.2 |
| Total count (106 spz)* | 192.5±143.7 | 232.4±161.1 | 220.9±196.3 | 195.6±163.8 |
| Progressive spermatozoa (%) | 44.9±19.9 | 44.6±16.5 | 45.2±21.9 | 45.9±23.2 |
| Vitality (%) | 74.1±11.0 | 73.8±10.1 | 74.5±13.2 | 71.9±15.1 |
| Normal sperm morphology (%) | 7.5±4.9 | 6.6±4.7 | 6.8±4.7 | 7.0±4.5 |
| Concentration after processing (106spz/mL)* |
65.7±30.3 | 67.2±32.6 | 65.5±38.2 | 67.9±31.8 |
| Motility after processing (%) | 92.9±5.3 | 93.1±4.1 | 93.9±5.2 | 92.9±6.1 |
| Total count after processing (106spz)* | 25.1±11.9 | 24.9±12.2 | 24.8±11.6 | 24.7±11.3 |
*
spz = spermatozoa.
a,b
Values with different letters inside the line differ significantly (p<0.05).