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. 2009 Oct 21;9:47. doi: 10.1186/1471-2466-9-47

Figure 3.

Figure 3

Box plots showing MFI 20 dimensions (median and IQR) in COPD patients for MRC scores. MRC score 1&2 (n = 31), 3 (n = 12), 4 (n = 17), 5 (n = 14). Kruskal Wallis tests: p = 0.001 for General Fatigue, p = 0.004 for Physical Fatigue, p = 0.001 for Reduced Activity, p > .05 for Reduced Motivation and Mental Fatigue; †Mann-Whitney test (Bonferroni correction p = 0.008).