Table 2. Correlation of human STL with sperm parameters.
| Parameter | R | P-valuea |
|---|---|---|
| Age (years) | −0.11 | 0.46 |
| Duration of infertility (years) | −0.23 | 0.53 |
| Sexual abstinence (days) | −0.11 | 0.45 |
| Semen volume (ml) | −0.14 | 0.53 |
| Sperm concentration (×106/ml) | 0.87 | 0.19 |
| Normal sperm morphology (%) | 0.26 | 0.12 |
| Total sperm count (×106) | 0.44 | 0.002 |
| Progressive motility (%) | 0.42 | 0.003 |
| DFI (%) | −0.44 | 0.002 |
| Formazation/107 | −0.40 | 0.004 |
DFI, DNA fragmentation index.
aPearson correlation or Spearman rank correlation according to the distribution of the variables.