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Table 4 Intercorrelations between sections of the St George's Respiratory Questionnaire#

From: Health status in COPD cannot be measured by the St George's Respiratory Questionnaire alone: an evaluation of the underlying concepts of this questionnaire

 

St George's Respiratory Questionnaire

 

Symptoms

Activity

Impacts

Total

Symptoms

1.00

--

--

--

Activity

0.50

1.00

--

--

Impacts

0.54

0.69

1.00

--

Total

0.73¶

0.88¶

0.91¶

1.00

  1. #only significant correlations (p < 0.01) are shown; ¶Pearson's r ≥ 0.70 (criterion for conceptual similarity)