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Table 4 Correlations between CCQ and SGRQ in patients with COPD (n = 38)

From: Development, validity and responsiveness of the Clinical COPD Questionnaire

  Clinical COPD Questionnaire
  Symptom Functional state Mental state Total
SGRQ     
   Symptoms 0.75** 0.49** 0.60** 0.72**
   Activity 0.25 0.69** 0.52** 0.53**
   Impact 0.47** 0.69** 0.61** 0.67**
   Total 0.51** 0.75** 0.67** 0.71**
  1. SGRQ = St. George Respiratory Questionnaire (higher score indicates worse HRQOL) * P < 0.05; ** P < 0.01, Spearman's rank correlation.
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