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Table 3 Correlations between CCQ with SF-36 in healthy (ex)smokers and patients at risk for/with COPD (n = 49)

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

  Clinical COPD Questionnaire
  Symptom Functional state Mental state Total
SF-36     
   Physical functioning -0.54** -0.70** -0.65 ** -0.69**
   Social functioning -0.45** -0.49** -0.34* -0.49**
   Role physical -0.46** -0.52** -0.47** -0.53**
   Role emotional -0.45** -0.50** -0.36* -0.48**
   Mental health -0.40** -0.48** -0.34* -0.49**
   Vitality -0.52** -0.55** -0.27 -0.58**
   Pain -0.22 -0.26 -0.17 -0.26
   Health perceptions -0.49** -0.54** -0.40** -0.56**
  1. SF-36 = Medical Outcome Survey Short Form-36 (higher score indicates better health status); * P < 0.05; ** P < 0.01, Spearman's rank correlation.