The Clinical COPD Questionnaire Correlated with BODE Index-A Cross-Sectional Study

<table>Box plot for CCQ scores by GOLD classification (FEV1 % predicted). Error bars show standard deviation and horizontal lines within boxes show the mean for CCQ scores.</table>

The Scientific World Journal

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Figure 1

Figure 1: The Clinical COPD Questionnaire Correlated with BODE Index-A Cross-Sectional Study 