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. 2012 Nov 27;7:789–796. doi: 10.2147/COPD.S31797

Figure 2.

Figure 2

Correlation between KCO (% predicted) and frequency of 164 treated exacerbations in 21 patients.

Notes: Each point is the average number of treated episodes/year for each patient. The correlation coefficient (r) and significance of the relationship are shown.

Abbreviation: KCO, corrected gas transfer.