Evaluating Stable Chronic Obstructive Pulmonary Disease by Ultrasound

Table 3

Correlation between FEV1 and ultrasonographic findings.

Variables	Control (n = 40)		COPD (n = 61)
	Correlation coefficient	value	Correlation coefficient	value
Lung Sil R	0.522	0.001	0.963	<0.001
Lung Sil L	0.535	<0.001	0.956	<0.001
Ant B-Mode R	0.599	<0.001	0.953	<0.001
Ant M-Mode R	0.682	<0.001	0.917	<0.001
Ant M-Mode L	0.747	<0.001	0.947	<0.001

FEV1: forced expiratory volume in 1 s.