Table 4. Summary of hierarchical regression analysis for variables predicting prolonged fatigue.
| Model 1 | Model 2 | Model 3 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Variables | Β | SE | β | p | Β | SE | β | p | Β | SE | β | p |
| (constant) | 38.39 | 1.01 | <.001 | 18.41 | 0.97 | <.001 | 17.57 | 1.82 | <.001 | |||
| Gender (man)a | 0.50 | 0.39 | 0.02 | .200 | 0.77 | 0.28 | 0.04 | .006 | 0.68 | 0.28 | 0.03 | .016 |
| Age | -0.28 | 0.02 | -0.30 | <.001 | -0.18 | 0.01 | -0.19 | <.001 | -0.17 | 0.01 | -0.18 | <.001 |
| Occupation (white-collar)b | 0.72 | 0.55 | 0.04 | .187 | -0.22 | 0.40 | -0.01 | .575 | -0.51 | 0.40 | -0.03 | .196 |
| Occupation (blue-collar)b | 2.18 | 0.58 | 0.12 | <.001 | -0.07 | 0.42 | -0.00 | .863 | -0.62 | 0.43 | -0.03 | .145 |
| Perceived physical health | -2.58 | 0.20 | -0.22 | <.001 | -2.49 | 0.20 | -0.21 | <.001 | ||||
| Regular exercise | 0.39 | 0.26 | 0.02 | .124 | 0.39 | 0.25 | 0.02 | .119 | ||||
| Perceived mental health | -1.87 | 0.21 | -0.16 | <.001 | -1.60 | 0.21 | -0.14 | <.001 | ||||
| Psychological distress | 0.68 | 0.03 | 0.42 | <.001 | 0.61 | 0.03 | 0.38 | <.001 | ||||
| Job demand | 0.28 | 0.03 | 0.14 | <.001 | ||||||||
| Job control | -0.11 | 0.02 | -0.11 | <.001 | ||||||||
| Workplace social support | 0.03 | 0.04 | 0.01 | .533 | ||||||||
| Full model, F | 82.07 | *** | 449.95 | *** | 351.70 | *** | ||||||
| Full model, Adjusted R2 | 0.096 | 0.545 | 0.570 | |||||||||
a woman as a reference;
b management as a reference;
***p <.001.