Pendelluft in Chronic Obstructive Lung Disease Measured with Lung Sounds

Table 5

Correlation of lead and lag with clinical data.

	Lead	Lag	Lead asynchrony	Lag asynchrony
GOLD stage	0.43	0.43	0.43	0.46
Smoking index	0.33	0.34	0.34	0.37
Age	−0.08	0.04	−0.08	−0.02
Gender	0	0.16	−0.01	0.17