| Variables | Unstandardized Coefficients | Standardized Coefficients | t | Sig. | |
| B | Std. Error | Beta | |||
| (Constant) | −0.960 | 2.811 |
| −0.341 | 0.734 |
| 盆底PH | 1.209 | 0.483 | 0.229 | 2.502 | 0.014 |
| EC值 | −0.364 | 0.067 | −0.496 | −5.424 | 0.000 |