Research Article
Clinical Factors Associated with Sperm DNA Fragmentation in Male Patients with Infertility
Table 5
The attributes of the clinical parameters associated with DNA damage in the multiple linear regression.
| Parameter | Standardized partial regression coefficient | value | 95% confidence interval | Lower limit | Upper limit |
| Model 1 | | | | | Chronic alcohol use (+) versus (−) | 0.2744 | 0.0394* | 0.2922 | 11.1788 | Serum FSH ≥5.6 versus <5.6 (mIU/mL) | 0.1429 | 0.2466 | −2.1513 | 8.1519 | Normal sperm morphology ≥1.5 versus <1.5 (%) | −0.0557 | 0.6813 | −6.8560 | 4.5226 | Sperm progressive motility ≥33.0 versus <33.0 (%) | −0.4864 | 0.0008* | −15.9232 | −4.5046 | Total sperm count ≥97.0 versus <97.0 (million) | −0.0605 | 0.6369 | −6.6348 | 4.1036 | Linearity ≥0.4 versus <0.4 | −0.0471 | 0.7221 | −6.5417 | 4.5696 | Proportion of vacuolated sperm ≥19.0 versus 19.0 (%) | 0.0669 | 0.5782 | −3.6395 | 6.4395 | Model 2 | | | | | Chronic alcohol use (+) versus (−) | 0.3069 | 0.0068* | 1.9444 | 11.5084 | Sperm progressive motility ≥33.0 versus <33.0 (%) | −0.5381 | <0.0001* | −16.5970 | −7.0193 |
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ALH: amplitude of lateral head displacement; FSH: follicle-stimulating hormone; statistically significant.
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