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Fig. 4 | BMC Pulmonary Medicine

Fig. 4

From: Association between annual change in FEV1 and comorbidities or impulse oscillometry in chronic obstructive pulmonary disease

Fig. 4

Comparison of %FEV1 in COPD patients with and without comorbidities. There were significant differences in %FEV1 in patients with and without pneumonia or asthma but not cancer or cardiovascular disease. The bars represent mean ± standard error of the mean. The differences between patients with and without each comorbidity were analyzed using unpaired t-tests. NS: not significant, *: p < 0.05, ** p < 0.01

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BMC Pulmonary Medicine

ISSN: 1471-2466

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