Table 4 Correlations to assess the convergent and divergent validity of the FACIT-Fatigue scales versus other measures

 Global health status

0.66

0.64

0.69

 Physical functioning

0.61

0.71

0.71

 Role functioning

0.56

0.67

0.66

 Emotional functioning

0.49

0.54

0.55

 Cognitive functioning

0.37

0.52

0.48

 Social functioning

0.47

0.57

0.55

 Fatigue

−0.75

−0.75

−0.80

 Nausea/vomiting

−0.33

−0.33

−0.35

 Pain

−0.39

−0.43

−0.44

 Dyspnea

−0.34

−0.32

−0.35

 Insomnia

−0.28

−0.26

−0.28

 Appetite loss

−0.39

−0.42

−0.44

 Constipation

−0.13

−0.20

−0.18

 Diarrhea

−0.18

−0.16

−0.17

 Financial problems

−0.21

−0.31

−0.29

 Mobility

−0.40

−0.45

−0.46

 Self-care

−0.19

−0.32

−0.29

 Usual activities

−0.48

−0.61

−0.59

 Pain/discomfort

−0.39

−0.38

−0.41

 Anxiety/depression

−0.44

−0.47

−0.49

EQ-VAS score

0.61

0.60

0.64