Table 4. Linear regression models in relation to the SF-36 physical and mental health score.
| SF-36 Physical health score | Coefficient | P-value | Confidence interval 95% | Collinearity statistics | ||
| Inferior | Superior | Tolerance | VIF | |||
| Constant | 20.713 | 0.449 | -38.564 | 74.170 | ||
| Number of persistent symptoms | -0.900 | 0,008 | -1.523 | -0.263 | 0.640 | 1.562 |
| Sit to Stand Test | 1.587 | 0,002 | 0.679 | 2.521 | 0.615 | 1.627 |
| Insomnia Severity Index (ISI) | -0.538 | 0,035 | -1.092 | -0.022 | 0.554 | 1.807 |
| R2 | 0.519 | |||||
| R2adj | 0.437 | |||||
| SF-36 mental health score | Coefficient | P-value | Confidence interval 95% | Collinearity statistics | ||
| Inferior | Superior | Tolerance | VIF | |||
| constant | 23.952 | 0,462 | -31.904 | 102.756 | ||
| Educational level | 13.167 | 0.017 | 1.391 | 23.535 | 0.777 | 1.286 |
| Number of persistent symptoms | -0.621 | 0.057 | -1.245 | -0.052 | 0.689 | 1.451 |
| Affective state (HADS) | -1.402 | <0.001 | -1.964 | -0.958 | 0.473 | 2.116 |
| R2 | 0.545 | |||||
| R2adj | 0.468 | |||||