Figure 2
From: Evaluation of psychological and physiological predictors of fatigue in patients with COPD

Box plots showing MFI 20 dimensions (median and IQR) in COPD patients for GOLD stages. GOLD stage I & II (n = 27), III (n = 32) and IV (n = 15). Kruskal Wallis tests: p = 0.008 for Physical Fatigue and p = 0.045 for Reduced Activity; p > 0.05 for General Fatigue, Reduced Motivation and Mental Fatigue; †Mann-Whitney test (Bonferroni correction p = 0.02).