Pendelluft in Chronic Obstructive Lung Disease Measured with Lung Sounds

Table 3

The means ± standard deviations of lead and lag expressed as a percent of the duration of inspiration at the trachea.

	Controls	COPD	𝑃
Lead (%)	4 ± 5	14 ± 13	<0.0001
Lag (%)	13 ± 12	28 ± 25	<0.0001