| Variables | Unstandardized Coefficients | Standardized Coefficients | t | Sig. | ||
| B | Std. Error | Beta | ||||
| 钙 | (Constant) | 0.673 | 1.941 |
| 0.347 | 0.730 |
| 总钙XCa | −1.490E-02 | 0.002 | −0.585 | −6.963 | 0.000 | |
| 基质钙 X9 | −1.678E-02 | 1.258 | −0.001 | −0.013 | 0.989 | |
| 镁 | (Constant) | 0.623 | 0.047 |
| 13.321 | 0.000 |
| 基质镁X10 | 0.163 | 0.050 | 0.312 | 3.269 | 0.002 | |
| 总镁 X4 | −0.161 | 0.023 | −0.664 | −6.963 | 0.000 | |