Reliability of Chest Wall Mobility and Its Correlation with Lung Functions in Healthy Nonsmokers, Healthy Smokers, and Patients with COPD

Table 4

Coefficient of correlation between chest expansions and lung function parameters.

		FVC	FEV1	FEV1/FVC	VC
Upper CE	r	0.678	0.595	0.785	0.668
	p	<0.001	<0.001	<0.001	<0.001
Lower CE	r	0.611	0.557	0.689	0.658
	p	<0.001	<0.001	<0.001	<0.001

CE = chest expansion; VC = vital capacity; FVC = forced vital capacity; FEV1 = forced expiratory volume in 1 second (this table is reproduced from Debouche et al. [24], under creative commons attribution license/public domain).