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. Author manuscript; available in PMC: 2020 Feb 4.
Published in final edited form as: COPD. 2019 Feb 4;15(6):572–580. doi: 10.1080/15412555.2019.1566892

Figure 4.

Figure 4.

Figure 4.

Comparison of SS and IS total mucin. A) SS mean ± SD is 4.15 ± 3.23 (n=62) and 3.34 ± 2.55 (n=71, p=0.371). B) Bland-Altman plot of paired samples collected on the same visit. The SS mean ± SD is 4.13 ± 3.02 and 4.01 ± 2.76 for the IS samples (p=0.898; n=18). The red solid line is the mean SS-IS difference, the red dotted line ± SE and the red dashed line ± SD.