Research Article
Clinical Factors Associated with Sperm DNA Fragmentation in Male Patients with Infertility
Table 4
The correlations between the sperm DNA fragmentation index and the clinical parameters.
| | Variable | ρ | values |
| | Age (years old) | 0.09448 | 0.49678 | | Duration of infertility (months) | 0.15084 | 0.27626 | | Serum LH (mIU/mL) | 0.09629 | 0.48855 | | Serum FSH (mIU/mL) | 0.27100 | 0.04747* | | Serum total testosterone (ng/mL) | 0.07281 | 0.60082 | | Serum free testosterone (pg/mL) | 0.05565 | 0.69519 | | Brinkman index# | 0.10040 | 0.47442 | | Body mass index (kg/m2) | 0.17027 | 0.21835 | | Conventional semen analysis | | | | Abstinence (days) | −0.12276 | 0.37651 | | Semen volume (mL) | −0.10769 | 0.43829 | | Normal sperm morphology (%) | −0.43883 | 0.00090* | | Sperm count (/mL) | −0.25931 | 0.05829 | | Total sperm count () | −0.30078 | 0.02710 | | Sperm progressive motility (%) | −0.55996 | 0.00001* | | Motile sperm count (/mL) | −0.49420 | 0.00015* | | Total motile sperm count () | −0.48962 | 0.00017* | | Computer-assisted semen analysis | | | | Linear velocity (μm/sec) | −0.01841 | 0.89488 | | Curvilinear velocity (μm/sec) | −0.26853 | 0.04960* | | Linearity | 0.31185 | 0.02170* | Amplitude of lateral head
displacement (μm) | −0.33075 | 0.01457* | | Beat/cross frequency (Hz) | −0.14489 | 0.29587 | | High-magnification microscopy | | | | Proportion of vacuolated sperm (%) | 0.25746 | 0.06538 |
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LH: luteinizing hormone; ρ: Spearman’s rank correlation coefficient; FSH: follicle-stimulating hormone; statistically significant; daily number of cigarettes × years.
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