(b) Variables in an equation
| Indicators | B | SE | Wald | df | Sig. | Exp(B) | 95.0% CI for Exp(B) | |
|---|---|---|---|---|---|---|---|---|
| Lower | Upper | |||||||
| pH | -0.284 | 0.206 | 1.903 | 1 | 0.168 | 0.753 | 0.503 | 1.127 |
| PR | -0.020 | 0.008 | 5.736 | 1 | 0.017 | 0.980 | 0.964 | 0.996 |
| NP | 0.003 | 0.008 | 0.138 | 1 | 0.710 | 1.003 | 0.987 | 1.019 |
| VCL | -0.062 | 0.010 | 42.107 | 1 | 0.000 | 0.940 | 0.922 | 0.957 |
| STR | -2.505 | 0.466 | 28.851 | 1 | 0.000 | 0.082 | 0.033 | 0.204 |
| SQ | -0.249 | 0.348 | 0.512 | 1 | 0.474 | 0.780 | 0.395 | 1.541 |
Note: pH: pH value; PR: sperm progressive motility; NP: nonprogressive motility; VCL: curvilinear velocity; STR: straightness (VSL/VAP); SQ: sperm quality (World Health Organization. 2010, 5th, ed).