Table 5.
The attributes of the clinical parameters associated with DNA damage in the multiple linear regression.
| Parameter | Standardized partial regression coefficient | P 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 |
ALH: amplitude of lateral head displacement; FSH: follicle-stimulating hormone; *statistically significant.