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Table 6 Test-retest results with intraclass correlation coefficients (ICC)

From: The development of a health-related quality-of-life instrument for young people with narcolepsy: NARQoL-21

N = 39

Mean (SD)

Min

Max

ICC (95%CI)

NARQoL-21_1 (test)

60 (14)

33

100

0.928 (0.858–0.963)

NARQoL-21_2 (retest)

62 (15)

29

100

 

Emotion_1

61 (19)

20

90

0.833 (.776–.938)

Emotion_2

63 (20)

10

95

 

Social_1

69 (19)

19

100

0.869 (.751–.931)

Social_2

72 (18)

25

100

 

School_1

47 (18)

17

92

0.924 (.855–.960)

School_2

52 (18)

21

96

 

Expectations_1

59 (25)

8

100

0.906 (.822–.951)

Expectations_2

59 (24)

8

100

 

Limitations_1

74 (22)

17

100

0.926 (.859–.961)

Limitations_2

72 (24)

17

100