Table 2

PedsQL™ Multidimensional Fatigue Scale and Rheumatology Module Pain and Hurt Scale for Child Self-Report and Parent Proxy-Report across Samples and Reliability for Fibromyalgia Sample

Fibromyalgiaa

Cancerb

Rheumatologyc

Healthyd

Differences

Effect Size


Scale

α

Mean

SD

Mean

SD

Mean

SD

Mean

SD


Self-Report

(N = 28)

(N = 29)

(N = 75)

(N = 152)

(N = 52)

Total Fatigue

0.94

55.48

21.19

70.23

15.68

76.68

20.52

80.49

13.33

a<b**; a<c,d***

1.88

General Fatigue

0.91

48.97

25.14

71.69

19.42

76.82

23.19

85.34

14.95

a<b,c,d***

2.43

Sleep/Rest Fatigue

0.76

52.36

21.08

64.50

21.73

71.77

24.27

75.00

18.76

a<c,d***

1.21

Cognitive Fatigue

0.91

65.17

24.30

74.49

19.10

81.30

20.83

81.14

17.43

a<c,d**

0.92

Pain and Hurt Scale

0.68

32.93

26.88

NA

67.11

27.54

NA

a<c***

NA

Proxy-Report

(N = 26)

(N = 26)

(N = 79)

(N = 125)

(N = 102)

Total Fatigue

0.94

54.19

18.99

64.05

19.08

75.78

20.81

89.63

11.38

a<c,d***

3.11

General Fatigue

0.89

49.68

21.92

60.04

23.39

73.11

24.65

89.30

13.33

a<c,d***

2.97

Sleep/Rest Fatigue

0.84

48.85

21.30

56.97

24.37

72.86

23.85

88.86

14.72

a<c,d***

2.72

Cognitive Fatigue

0.96

64.10

22.70

75.14

21.37

81.83

19.39

90.72

15.15

a<c,d***

1.76

Pain and Hurt Scale

0.75

32.35

25.93

NA

65.33

28.96

NA

a<c***

NA


*p < .05, **p < .01, ***p < .001 based on Tukey post-hoc analysis. Effect sizes are designated as small (.20), medium (.50), and large (.80). Effect sizes represent the magnitude in the differences between the Fibromyalgia and Healthy Children samples only. α = Cronbach internal consistency reliability coefficient alpha. Healthy sample completed the Acute Version (7-day recall) of the PedsQL™ Multidimensional Fatigue Scale. Sample size for the Rheumatology Module Pain and Hurt Scale for Child Self-Report for Fibromyalgia sample equals 57 and for Rheumatology sample equals 150. Sample size for the Rheumatology Module Pain and Hurt Scale for Parent Proxy-Report for Fibromyalgia sample equals 57 and for Rheumatology sample equals 126. NA = not applicable.

Varni et al. Health and Quality of Life Outcomes 2007 5:9   doi:10.1186/1477-7525-5-9

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