| Equation | Excluded | chi2 | df | p-value |
|---|---|---|---|---|
| COMP | JPG | 2.383 | 1 | 0.123 |
| PPG | 0.257 | 1 | 0.612 | |
| PJRD | 34.808 | 1 | 0.000 | |
| ALL | 61.571 | 3 | 0.000 | |
| JPG | COMP | 12.203 | 1 | 0.000 |
| PPG | 25.678 | 1 | 0.000 | |
| PJRD | 14.568 | 1 | 0.000 | |
| ALL | 37.178 | 3 | 0.000 | |
| PPG | COMP | 5.555 | 1 | 0.018 |
| JPG | 13.312 | 1 | 0.000 | |
| PJRD | 5.171 | 1 | 0.023 | |
| ALL | 56.753 | 3 | 0.000 | |
| PJRD | COMP | 12.314 | 1 | 0.000 |
| JPG | 0.065 | 1 | 0.798 | |
| PPG | 8.548 | 1 | 0.003 | |
| ALL | 42.227 | 3 | 0.000 |