Research Article
Clinical Factors Associated with Sperm DNA Fragmentation in Male Patients with Infertility
Table 2
The results of the conventional semen analyses, computer-assisted semen analyses, high-magnification observations of spermatozoa, and SCD tests.
| | Parameter | Mean | S.D. | Median | Interquartile range |
| | Conventional semen analyses () | | | | | | Abstinence (Days) | 5.8 | 2.5 | 5.0 | 5.0-6.0 | | Semen volume (mL) | 3.1 | 1.6 | 3.0 | 2.0–5.2 | | Normal sperm morphology (%) | 2.1 | 2.1 | 1.5 | 0.6–3.0 | | Sperm count (/mL) | 49.8 | 52.8 | 35.7 | 17.8–61.0 | | Total sperm count () | 146.1 | 133.1 | 97.0 | 38.7–227.9 | | Progressive sperm motility (%) | 33.3 | 17.9 | 33.0 | 19.5–47.3 | | Motile sperm count (/mL) | 22.0 | 43.4 | 8.2 | 3.1–25.6 | | Total motile sperm count () | 57.0 | 81.2 | 22.9 | 7.7–99.4 | Computer-assisted semen analyses
(SMAS, ) | | | | | | Linear velocity (μm/sec) | 17.8 | 4.8 | 17.7 | 15.5–21.6 | | Curvilinear velocity (μm/sec) | 45.0 | 12.4 | 46.4 | 36.2–52.4 | | Linearity | 0.40 | 0.08 | 0.40 | 0.36–0.45 | | ALH (μm) | 1.048 | 0.362 | 1.045 | 0.76–1.335 | | Beat/cross frequency (Hz) | 11.19 | 1.84 | 11.22 | 10.60–12.19 | | High-magnification microscopy () | | | | | | Proportion of vacuolated sperm (%) | 24.7 | 17.9 | 19.0 | 11.5–36.4 | | SCD tests () | | | | | | Sperm DNA fragmentation index (%) | 41.3 | 22.3 | 42.7 | 22.5–56.2 |
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S.D.: standard deviation; SMAS: sperm motility analysis system; ALH: amplitude of lateral head displacement; SCD test: sperm chromatin dispersion test.
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