Table 3.
Dummy regressor coding scheme for the three levels of pain resilience in the regression equation.
| Levels of pain resilience | P 1 | P 2 |
|---|---|---|
| Very low (≦ 19) | 0 | 0 |
| Moderate (20–32) | 1 | 0 |
| High (> 33) | 0 | 1 |
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