| 最优变量子集 | 标准系数 | t值 | P值 |
| (常量) |
| 2.647 | 0.014 |
| RPI | 1.137 | 35.482 | 0.000 |
| PPIRM | −0.203 | −5.913 | 0.000 |
| TRSCG | 0.144 | 5.850 | 0.000 |
| IIFA | −0.147 | −5.088 | 0.000 |
| FER | 0.085 | 3.790 | 0.000 |
| AMPI | −0.106 | −3.430 | 0.001 |