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Table 6 Difference between disease stages

From: Health-related quality of life in patients with severe COPD hospitalized for exacerbations - comparing EQ-5D, SF-12 and SGRQ

Instrument

n

Stage III

Stage IV

p-value*

EQ-5D

231

0.73

0.68

0.180

VAS

243

52

45

0.009

SF-12 - SF-6D

173

0.62

0.56

0.003

SF-12 - PCS

141

30

30

0.599

SF-12 - MCS

141

47

41

0.007

SGRQ - total

234

63

69

0.008

SGRQ - symptoms

243

75

72

0.317

SGRQ - activity

240

78

85

0.008

SGRQ - impact

240

51

59

0.005

  1. * from mixed linear regression adjusted for age, sex, smoking status and time of assessment
  2. MCS: mental component score; PCS: physical component score.
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Health and Quality of Life Outcomes

ISSN: 1477-7525

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