| AIC | Akaike information criterion |
| BIC | Bayesian information criterion |
| CES-D | Center for Epidemiologic Studies Depression Scale |
| CNS | Central nervous system |
| EORTC QLQ | European Organization for Research and Treatment of Cancer—Quality of Life questionnaire |
| ES | Effect Size |
| FACIT-F | Functional Assessment of Chronic Illness Therapy—Fatigue |
| IP | Insurance phycisian |
| RTW | Return to work |
| SD | Standard Deviation |
| SSA | Social Security |
| UCL | Utrecht Coping List |
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