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Table 3 Reliability of the SGRQ and the CCQ

From: Validation of the Clinical COPD Questionnaire (CCQ) in primary care

Instrument

ICC#

(n = 48)

ICC*

(n = 36)

SGRQ

  

Total

0.92

0.92

Symptoms

0.80

0.81

Activity

0.84

0.84

Impacts

0.85

0.85

CCQ

  

Total

0.85

0.85

Symptoms

0.74

0.75

Functional state

0.86

0.85

Mental state

0.83

0.83

  1. #Reliability of instruments evaluated on the stable subgroup in the entire study sample with clinical COPD. *Reliability of instruments evaluated on the stable subgroup in the group with verified COPD. ICC (intra class correlation) calculated with a two-way mixed model of consistency. SGRQ = St Georges Respiratory Questionnaire, CCQ = Clinical COPD Questionnaire.
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Health and Quality of Life Outcomes

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