Figure 3From: Creating scenarios of the impact of copd and their relationship to copd assessment test (CAT™) scores Bland and Altman plot of SGRQ and adjCAT scores. CAT scores were converted to 0 to 100% (adjCAT) to match SGRQ scores. The X axis is the mean of the SGRQ and adjCAT scores; the y axis is SGRQ-adjCAT score. The correlation for a linear regression was r = 0.16, p = 0.005.Back to article page