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Table 3 Floor and ceiling effect and Cronbach’s α values in comparable domains of the NHP and the SF-36 scales ( n =83)

From: A study of two generic health-related quality of life questionnaires—Nottingham Health Profile and Short-Form 36 Health Survey—and of coping in patients with sensory hyperreactivity

NHP

Floor

Ceiling

α values*

SF-36

Floor

Ceiling

α values*

Emotional reactions

0

28.9

0.76

Mental health

0

2.4

0.80

Energy

12.0

44.6

0.69

Vitality

0

1.2

0.88

Physical mobility

0

55.4

0.71

Physical functioning

0

6.0

0.91

Social isolation

1.2

73.5

0.71

Social functioning

1.2

21.7

0.86

Pain

0

51.8

0.89

Bodily pain

1.2

24.1

0.95

  1. Data are presented as percentages *Cronbach’s α values.