Pearson correlation coefficients between the variables
| Pain | Fatigue | Anxiety | Depression | HRQoL | |
| Pain | 1 | ||||
| Fatigue | 0.567** | 1 | |||
| Anxiety | 0.590** | 0.715** | 1 | ||
| Depression | 0.541** | 0.565** | 0.735** | 1 | |
| HRQoL | −0.462** | −0.601** | −0.595** | −0.510** | 1 |
**P<0.001.
HRQoL, health-related quality of life.