Table 4

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


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**

SGRQ = St. George Respiratory Questionnaire (higher score indicates worse HRQOL) * P < 0.05; ** P < 0.01, Spearman's rank correlation.

van der Molen et al. Health and Quality of Life Outcomes 2003 1:13   doi:10.1186/1477-7525-1-13